Underwater scooters are fast becoming hot property in the diving world, helping a diver to gain some momentum under the water and ultimately providing the diver with a more exciting experience.  An additional benefit for a diver is that an underwater scooter helps you to go further and explore more of the ocean, pulling you through the water and requiring you to swim less, therefore conserving your energy and helping you to consume less air as you are using less energy.

As well as being an excellent tool for the experienced and professional diver, helping them to explore deeper depths of the ocean, an underwater scooter can also be fantastic for the beginner and novice diver, allowing you to experience a gentle introduction into the sport.

We are going to explore the ten best underwater scooters currently on the market, helping you to decide which underwater scooter is best for you.

View The Best Underwater Scooters Below

1. Yamaha RDS250

Yamaha RDS250

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The Yamaha RDS250 sea scooter allows you to travel at 2.5 mph to a maximum depth of 100 ft. The battery provides up to 2 hours of continuous running time and weighs around 18 lbs. The Yamaha RDS250 sea scooter offers a removable buoyancy control chamber for diving in salt water although the sea scooter can, of course, be used in fresh water, too.

A camera mount is included so that you can attach your own standard-sized Go-Pro camera if you so wish. To use the Yamaha RDS250 sea scooter, the manufacturer recommends that you are over 16 years old, although there is no weight limit.

+ 2.5 mph top speed
+ 100 ft maximum depth
+ 2-hours continuous run time
+ 18 lbs weight
+ Camera mount

Why We Like It – The Yamaha RDS250 sea scooter is efficient for regular recreational use with the added benefit of a camera mount included so that you can attach your GoPro and capture everything you see while on your diving expedition.



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The YAMAHA RDS 300 underwater scooter provides a top speed of 3 mph. Being able to submerge up to 100 ft, the YAMAHA RDS 300 underwater scooter offers you 1.5 hours of run time for you to take your time and explore the ocean.

The heavy-duty rubber hull enables the underwater scooter to be impact resistant, providing a waterproof construction to prevent flooding. Furthermore, the YAMAHA RDS 300 underwater scooter features a two-level rotational speed control along with an auto shut off once the triggers are released. You can also attach your Go-Pro with ease with the included camera mount.

+ 3 mph top speed
+ 100 ft maximum depth
+ 1.5 hours run time
+ 18 lb weight
+ Camera mount

Why We Liked It – The two-level rotational speed control is a great feature, providing you with flexibility and choice while diving through the depths of the ocean.

3. Sea Scooter Underwater Propeller

Sea Scooter Underwater Propeller

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Sea Scooter Underwater Propeller is offering up to 50 minutes of run time, the Sea Scooter Underwater Propeller provides a slow speed and a fast speed option, with a top speed of up to 3.7 mph. The battery requires around 4 hours to charge before you are ready to take to the water.

+ 50 minutes run time
+ 3.7 mph top speed
+ Slow and fast speed options
+ 4-hours battery charge time
+ Stylish yellow design

Why We Liked It – The slow and fast speed options enable you to switch speeds during your exploration, from zooming down the depths of the ocean to slowing down and absorbing the wonders of the coral reef.

4. Yamaha Seal

Yamaha Seal

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If you are considering purchasing an underwater scooter for gentle recreational use with friends and family as opposed to diving through the depths of the ocean, then the Yamaha Seal underwater scooter may be the best choice for you.

This option is one of best choices on our list and is perfect for either family fun or for the novice diver. Reaching depths of 15 ft at a speed of 2 mph, the Yamaha Seal underwater scooter provides you with 1.5 hours of run time and comes in a stylish red and white design.

+ Great low price
+ 2 mph top speed
+ 15 ft depth
+ 1.5 hour run time
+ Great for beginners

Why We Like It – If you are a beginner to diving, then the Yamaha Seal underwater scooter is a great initiation at a low price. Achieving a good speed of 2 mph, the maximum depth of 15 ft allows you to gain experience under water before going deeper down into the ocean.

5. Sublue US WhiteShark Mix

Sublue US WhiteShark Mix

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The Sublue US WhiteShark Mix underwater scooter can achieve the deepest depth of all underwater scooters featured in our review at 131 ft. The Sublue US WhiteShark Mix underwater scooter features a unique design and three different color choices to choose from.

The underwater scooter is lightweight at only 6.28 lbs, enabling you to carry it around with you on the go in the duffle bag included within your purchase. The Sublue US WhiteShark Mix underwater scooter can achieve a high speed of 3.35 mph as long as the battery is fully charged. Most sports cameras can be attached to the Sublue US WhiteShark Mix underwater scooter, enabling you to capture perfect moments under the sea.

+ 3.35 mph top speed
+ 131 ft depth
+ 6.29 lb in weight
+ Three color choices
+ Camera attachment

Why We Liked It – This lightweight underwater scooter provides you with ease of use, allowing you to carry your diving equipment effortlessly and care-free.

6. YAMAHA Seascooter YME22220


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Light, two speed seascooter that is able to constantly work 60 minutes, and reach speed up to 3.1 mph, is something that will help you catch all underwater world you would like to see. Built in camera, designed for salt water, is something that separates this model from all others in same price range. Waterproof design also makes maintenance easier.

+ Built in, waterproof camera
+ 3.1mph
+ 60 minutes of running time
+ Easy for maintenance
+ Designed for salt water

Why We Liked It – Built in camera, and 60 minutes of running time can create memories that would last forever.



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The Windek Sublue WhiteShark is world’s first two engine underwater scooter. It’s power makes it available even for kids. Great modern design, 30 minutes battery, and speed up to 3.36mph makes Windek SubBlue one of the most attractive models on the market. Despite it’s small size, it has lots of power, due to dual motor system. It can go down to 40m deep, and has waterproof battery, while being compatible with almost all cameras available.

+ Two motors
+ 5.6 mph top speed
+ Reaches 40m depth
+ 30 minute run time
+ Modern design

Why We Liked It – Modern design, and powerful motors, as well as compatibility with all cameras makes it stand out in the competition.

8. JetPilot Sea Doo Dolphin

JetPilot Sea Doo Dolphin

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The JetPilot Sea Doo Dolphin underwater scooter is a smaller device, perfect for beginners and novices. Achieving 2 mph in speed, the JetPilot Sea Doo Dolphin underwater scooter provides 1.5 hours of run time, reaching depths of 15.5 ft under water.

This underwater scooter is suitable for adults and children aged 8 years and above, providing excellent family fun and a sound introduction to recreational diving. Furthermore, the JetPilot Sea Doo Dolphin underwater scooter features fun and attractive blue and green design.

+ 1.5 hours run time
+ 2 mph top speed
+ 15.5 ft depth
+ Suitable for adults and children over 8 years old
+ Green and blue design

Why We Liked It – Many underwater scooters are only suitable for adults, so it is great to discover that the JetPilot Sea Doo Dolphin underwater scooter is suitable for children over 8 years old as well as adults.

9. Apollo AV-2 Evolution 2 U/W

Apollo AV-2 Evolution 2 U/W

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The Apollo AV-2 Evolution 2 U/W underwater scooter is reaching depths of 230 ft, this underwater scooter can travel through the depths of the ocean more than twice as far as some of the other powerful devices.

The Apollo AV-2 Evolution 2 U/W underwater scooter provides up to 110 minutes running time and features a 3-speed prop to enable you to experience flexibility and freedom.

+ Reaches depths of 230 ft
+ 2.6 mph speed
+ 110 minutes of running time
+ 3-speed prop
+ Complete speed control

Why We Liked It – Although the Apollo AV-2 Evolution 2 U/W underwater scooter is an expensive model, being able to reach 230 ft in depth through the ocean is a fantastic feature for experienced divers.

10. Yamaha 500Li

Yamaha 500Li

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The Yamaha 500Li underwater scooter can achieve a top speed of 4.35 mph with a 3-level rotational speed control, it features a camera mount which is compatible with your GoPro, being able to capture images up to a 130 ft depth. Furthermore, the battery level indicator makes sure that you are fully aware of how much battery life remains.

+ 4.35 mph
+ Reaches 130 ft depth
+ 3-level rotational speed control
+ Accommodates a camera mount
+ Battery level indicators

Why We Liked It – The 4.35 mph speed and reaching a 130 ft depth makes the Yamaha 500Li underwater scooter a powerful underwater scooter for the experienced diver.

Underwater Scooter Buyers Guide

What is an underwater scooter?

An underwater scooter is an item of diving equipment which helps a diver to increase their range underwater.  When underwater, a diver carries on their back a canister of breathing gas and can only stay underwater for the amount of time which the breathing gas last.  An underwater scooter pulls the diver through the water, requiring them to swim less and subsequently uses less breathing gas.  The breathing gas will then last longer, and the diver will increase their range underwater.

What to look for when buying an Underwater Scooter?


The speed which an underwater scooter travels varied from 2 mph to over 5 mph, depending upon the brand and model you purchase.  For a beginner, or for family-friendly use, a 2 mph speed should be fast enough, to begin with.  The more experienced diver may want a faster underwater scooter, although the faster and more powerful models are a great deal more expensive.


As an underwater scooter submerges beneath the ocean, the depth which it is able to achieve is also important.  A beginner underwater scooter may be able to travel a distance of 15 ft, a considerable distance under the ocean.  However, the more expensive models are able to reach at least 100 ft, with some models being able to reach a depth of 230 ft.  These depths should only be achieved by very experienced divers, however.

Running Time

It is important to discover what running time each underwater scooter is capable of.  For a beginner, a run time of 40 – 50 minutes should be a sufficient amount of time.  However, an experienced diver may wish to explore the extreme depths of the ocean and so a run time of up to 120 minutes may be desirable.

Buyers Guide Question

Q:  Do I need an underwater scooter in order to go diving?

A:  No, you do not need an underwater scooter to go diving.  However, an underwater scooter can make your diving experience much more enjoyable and increase your range underwater significantly.  An underwater scooter pulls the diver through the water, requiring them to swim less and subsequently uses less breathing gas.  The breathing gas in the canister on their back will then last longer, and the diver will increase their range underwater.

Buyers Guide Question

Q:  Can a child use an underwater scooter?

A:  Most underwater scooters require the user to be 16 years old and above due to the power which the device exerts.  Be careful to adhere to these age restrictions as they are set for a reason and some models may be far too powerful for an under 16 years old to use.  However, there are models which are suitable for children of certain ages, for example, the JetPilot Sea Doo Dolphin underwater scooter which is suitable for children aged 8 and over.  Providing a 2 mph speed and a 15.5 ft depth, the JetPilot Sea Doo Dolphin underwater scooter allows you and your child to enjoy up to 1.5 hours of diving fun.

Expert tip

When you buy a new diving mask, rub some toothpaste on the inside in order to decrease the possibility of fogging.  Also, you should not wear sunscreen when you are diving as it can be damaging to coral reefs.  Other items are available to protect your skin from the sun, such as a rash vest and a hood.

Did you know?

The first underwater scooters were based on torpedo technology.  Their earliest recorded use is through military use as part of World War II.

Key Specs:

Product Dimensions Weight Speed
Yamaha RDS250 – B075FXYCH5


24 x 15.2 x 12.3 inches 18 lbs 2.5 mph


24 x 15.2 x 12.3 inches 18 lbs 3 mph
Sea Scooter Underwater Propeller – B01KH32W0K


23.5 x 14.6 x 12.2 inches 18 lbs 3 mph
Yamaha Seal – B075FBWQJ1 11.25 x 11.25 x 19 inches 12 lbs 2 mph
Sublue US WhiteShark Mix – B07CQH15X7 10 x 19 x 10 inches 6.28 lbs 3.4 mph
JetPilot Sea Doo Dolphin – B01MZDQCSA


10.3 x 19.4 x 10.3 inches 12 lbs 2 mph
Apollo AV-2 Evolution 2 U/W – B016E4W09O


22 x 14 x 10 inches 18 lbs 2.6 mph


23.6 x 14.2 x 12.2 inches 16.5 lbs 3 mph


22 x 14 x 12 inches 30.8 lbs 5.6 mph
Yamaha 500Li – B077XZ1VGB


12.6 x 11.8 x 24 inches 21 lbs 4.35 mph



There is a good deal of choice across the underwater scooter market, providing you with some fantastic options and some great prices.  If you are new to diving or want to introduce your family to the sport, a lower priced and less powerful underwater scooter will be perfect for you.  However, if you take your diving seriously, then there are some very powerful models currently available, some helping you to achieve 230 ft underwater in addition to enabling you to travel at over 5 mph.

There are some strong advantages in purchasing an underwater scooter before you embark on your activity, such as the boost it will give to your swimming, allowing you to rest when needed and therefore using less energy and less oxygen, providing a greater underwater range.

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When you’re out exploring the depths of the oceans, a dive knife can come in handy in many situations. If you want to catch your diving partner’s attention, simply knock the knife on your tank. The sound will spread like wildfire under the water.

If you see sea animals in danger, such as sea turtles or dolphins entangled in nets, you can aid in setting them free. The options are endless, and if you can help save innocent creatures in their time of need, what better way is there to help out? One thing is sure, however: it’s much better to be equipped with a diving knife (even two) instead of not having one. It’s better to be safe than sorry, but how do we know which dive knife is best?

The ideal dive knife helps provide you and your diving partners with a tool that can aid in many various situations. Whether that’s to help you or the surroundings around you, it’s a good investment to have it with you. That’s why we are providing you with the best dive knife choices below, in a summarized bite-size format!

View The Best Dive Knife Below

1. Promate Scuba Diving Snorkeling Sharp

Promate Scuba Diving Snorkeling Sharp

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The Promate is a dive knife that has been quoted to look stunningly like one of the high-shelf dive knives that you pay hundreds of dollars for. Despite that, it remains available at a budget price and has been serving divers for a quite a while now. Its blade is made of 304 stainless steel, the same as the stainless steel hammer that is located at the bottom of the handle.

The knife can be easily retracted from its sheath and is praised for its quick release. If you decide that it’s time for a little polishing & cleaning, the Promate can be easily disassembled to enable you to do so. Its overall length equals to 10.5 inches, with the blade itself measuring in at 5 inches.

+ 8 colors available
+ Budget price
+ Quick release
+ Stainless steel blade
+ Easy to disassemble

Why we like it – The handle comes in various colors, from green to pink to blue and more. If you’re traveling with buddies, it’s a good way to track whose knife is whose with these color codes.

2. Scuba Diving Knife with Leg Straps

Scuba Diving Knife with Leg Straps

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It’s not for naught that the Punada dive knife has been listed as a best-seller among its contestants. It’s the ideal tactical knife that can aid in various situations, both indoors, outdoors, underwater and out on land. If you are looking for something versatile, then this dive knife can provide you with all the functions you seek.

It’s made of 440c stainless steel and has been stated to be perfect for scuba diving. Its sharpness will allow you to cut through anything you need, whether its nets or weeds you might be immobilized by.

Its portable design will also give you the convenience to use all the features of the dive knife, wherever you may dive or venture. The knife itself measures 8.65 inches and is most certainly a heavy-duty make. You can release the blade thanks to one quick button, which eliminates any fussing underwater.

+ Quick release through 1 button
+ Comfy handle
+ Multi-functional
+ Measures 8.65 inches
+ Fully portable

Why we like it – Punada offers you a 100% money back guarantee should their knife not live up to your expectations. Either a refund or a replacement is not a problem and can be arranged quickly and efficiently thanks to customer support.

3. Promate Scuba Dive Snorkel Titanium Knife

Promate Scuba Dive Snorkel Titanium Knife

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The Promate Titanium snorkel dive knife looks attractive from the get-go with its colorful handle. You can get this particular knife in 10 color variations. If you are going on a trip with friends or with family, it’s a good idea to purchase different colors for everyone. This way, you will be able to easily distinguish which dive knife belongs to who.

The handle is also molded from rubber, which ensures that the knife won’t slip from your grasp under the water. The knife itself also doesn’t require any particular maintenance thanks to its stainless steel make.

A titanium hammer is also present within this design and is located at the bottom of the handle. The length of the blade equals to 4.45 inches however the actual overall length of the knife is 9.45 inches. When ordering this dive knife, you will also be supplied with straps and a sheath for the ultimate portability.

+ Rust-free titanium
+ Ergonomic rubber
+ Straps for leg attachment
+ Lightweight
+ Easy-grip handle

Why we like it – If you will decide to purchase this knife, you will have to choose between a sharp tipped and blunt tipped alternative. There is also double-button push release for maximum security; the knife has a quick response and emerges immediately without pause.

4. Cressi Borg, Long Blade Knife for Diving

Cressi Borg, Long Blade Knife for Diving

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The Cressi is an authentic dive knife that has been produced to be used predominantly for this purpose. The company, based in Italy, has been producing these knives since the beginning of 1946. If you want to put your trust in a dive knife that will have little to no option of failing you, then the Cressi Borg is where you should place your debts.

The blade itself is manufactured from stainless steel imported from Japan. This Cressi is actually a blunt tip variation of the dive knife; one side of the blade is straight, while the other is serrated for ultimate versatility and comfort. The sheath is supplied with a locking mechanism that supports a one-hand release. It’s perfect for strapping around your leg, it has a strong and sturdy build and can be grabbed and used with ease.

+ Great precision
+ Strong & Versatile
+ Superior stainless steel
+ Reliable locking mechanism
+ Thick blade

Why we like it – Sometimes dive knives come in sizes that are just too small to be used effectively. This knife, however, gives the perfect balance of a precise cut and the ideal size.

5. MahiMahi Spearfishing knife – diving knife

MahiMahi Spearfishing knife - diving knife

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If you have been searching for a dive knife that you can use during your snorkeling endeavors, then the MahiMahi may be just the right fit. It’s perfect for beginners and regular divers, and an ideal companion for someone who is scuba diving regularly.

The knife itself is extremely pointy and can cut through just about anything. If you will find yourself entangled in an unfortunate situation, this diving life can be your only way out.

The sheath comes with a secure lock which ensures that your knife won’t slip out during your dives. You can strap the knife either on your forearm or leg thanks to the rubber strips that will hold the knife tightly against your body. Should you need to use it, you can release it within seconds and get to work.

+ Secure lock
+ Audible click
+ Stainless steel
+ Very sharp tip
+ Perfect for diving

Why we like it – If you decide to buy one MahiMahi dive knife, you can get the second one at 10% off! It’s a great deal since it’s always a good idea to have a backup knife within reach.

Dive Knife Buyers Guide

What to look for when buying a dive knife

A dive knife will accompany you through all of your diving and snorkeling adventures. It may also be the only thing that you can save you if you encounter trouble within the ocean depths. Whether you get entangled or see an ocean creature imprisoned within a fishing net, having something that can help is priceless.

Stainless Steel

Possibly the most important thing when buying a dive knife is ensuring that the blade steel is stainless. As well as any other steel accessories that may be located on the knife. This will ensure that your knife doesn’t rust and get weakened. You should still, however, ensure to rinse the knife with clean tap water before putting it back into its sheath. This will prevent any of the potential saltwater getting lodged within the crevices.

Sharp vs. Blunt

The reason a lot of divers use a blunt knife is that you don’t need to pay so much attention to injuring your gear. With a sharp tip knife, you may accidentally cut your hose or suit. Both have their uses, and in essence, it’s good to have both. Most divers have the blunt knife mounted on their forearm for easy general use, and the sharp tip around their ankle. The sharp tip only being used in a real case of emergency.

Sheath & Straps

Most dive knives nowadays come with a sheath and a strap so that you can mount it on your forearm or leg from the get-go. This is a great convenience, and you rarely have to go out and search for these things yourself. When diving, having a reliable knife is almost as important as having a sturdy sheath. After all, what can you do if your straps get loose or unlock and you end up losing your knife?


Now that you have a grasp of the basics, you can go and search for your ideal dive knife. Remember, you should feel comfortable when handling it; a good knife is like an extension of a diver’s arm!

Expert Tip

When diving, make sure to strap the dive knife somewhere where you know you can heavy easy access to it. Too often do beginners strap the knives somewhere where it’s impossible to reach them, and get themselves in unfortunate situations because of this.

Did you know?

The word “scuba” hasn’t been chosen by chance, it’s an acronym and it actually stands for “self-contained underwater breathing apparatus.”

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Cressi was founded by two brothers in 1946 in the seaside Italian town of Genoa. Ever since then, the company has had an incomparable reputation for creating quality aquatics equipment. It doesn’t matter if you are a spearfisher or a scuba diver, you will know that Cressi does things well, and when you spend your dollars on a Cressi product then you know you have invested your money wisely.

The Cressi Leonardo dive computer is proof of this. It ticks all the boxes a beginner or intermediate diver would want from a dive computer. The single button interface assures simplicity of use. The HD screen is huge and includes a backlight, so it is very easy to read while underwater.

It comes with all the added extras that you need too, as there are visual and audible alarms, the ability to download your logbook to your computer, and the dive computer is physically robust as well

Related: Dive Watches.

Cressi Leonardo Dive Computer

ressi Leonardo

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Key Features

The Cressi Leonardo is an amazing dive computer that is absolutely loaded with amazing features. Here are the most important ones:

Single Button Interface: This makes the dive computer easy to navigate and the big button is reactive even when you press it with gloves on.

Three Operating Modes: These are Air, Nitrox, and Gauge.

Audible Alarms: Loud enough for you to hear while you’re underwater.

High-Definition Display Screen: The screen is also large and very easy-to-read, even when you’re diving.

Long, Durable Strap: It comfortably fits around your diving suit.

Backlight: Allows you to read the screen in dim or poor light.

Replaceable Battery: The long-lasting CR 2430 battery can be replaced by the user quite easily.

Adjustable up to 12,100 Feet: This is easy to do on the Cressi Leonardo.

USB Interface: Handy for hooking it up to your laptop or mac so you can download your logbook.


+ The display screen is both huge and easy-to-read.

+ The audible alarms are extremely loud, and they also have a distinctive tone, so no matter how engrossed in the dive you are, you’ll still be able to hear and recognize them.

+ The battery should last for at least 100 dives until it needs replacing, which you can then do after purchasing a cheap replacement.

+ The single button interface makes the Leonardo extremely simple to operate, so new divers don’t have to worry that it is overly complicated to use, which many other dive computers are.


– There has been some criticism that the backlight isn’t as strong enough as it could be. This is, however, just the opinion of some of the Cressi Leonardo’s users. Most are satisfied that the backlight makes the screen visible in poor light.

Who Is It Suitable For?

The Cressi Leonardo dive computer is one of the best entry-level dive computers around. Beginner divers will love its usability and all the amazing features that it has. They will also love the price tag, as it is an affordable dive computer. If you are looking for your very first dive computer, then you cannot go wrong with the Cressi Leonardo. It has everything you will need while remaining easy-to-use.

Recreational divers or intermediate divers are also fans of this dive computer. The Nitrox mode especially appeals to more advanced divers.

Why We Like It

Cressi is a brand that you can rely on and depend on. Purchasing a Cressi product is a safe bet. The Leonardo is a brilliant dive computer that has the three most important modes that any entry-level to intermediate-level scuba diver will require.

It has a clear, large display, that can be easily operated by the single button interface, and it also has a durable wrist strap that is so long that you never have to worry about it fitting around your dive suit. It is a conservative dive computer, so it will keep you safe, and the audible alarms will keep you alerted when you’re underwater, further assuring your safety.

If you are a beginner scuba diver looking for your first dive computer or a recreational diver looking for a high-quality, reliable dive computer, then the Cressi Leonardo is a great choice.

Other Similar Product

Cressi Giotto

Cressi Giotto

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It can be a daunting task for a beginner scuba diver to wrap their head around all the essential equipment that is needed for a successful, safe dive. It doesn’t need to be. Each item of kit plays an important role, and after your first dive, you will see in action how each piece of equipment is important and why.

But before you set out on your first dive, then read this guide, as it will explain the functions of the most essential pieces of diving equipment.

Exposure Suit

An exposure suit is worn to regulate your body temperature while you are underwater. It is essential for every scuba diver.

A wetsuit is the most common form of exposure suit. It is a skin-tight suit that is usually made from closed-cell foam neoprene. It offers you insulation while you’re underwater. The thicker the material the wetsuit is constructed from, the more insulation you will get, so thin wetsuits are for warmer waters, and thick ones are for tepid or cold water.

A drysuit is slightly different. These are designed for extremely cold waters. As the name suggests, you are kept completely dry, because air is used for insulation, rather than water, which it is with a wetsuit. This means that drysuits are looser than wetsuits, which also allows for more layers to be worn underneath them

Dive Mask

Dive mask

The primary function of the dive mask and the most important is that it allows the scuba diver to see while underwater. They come in a variety of shapes and sizes, with some offering panoramic views, and others offering more limited views, but then being less cumbersome.

The two most common types of diving masks are the half mask and the full mask.

The half mask is similar to a pair of goggles. They go around the head and cover both the eyes and nose, but they do not cover the mouth.

A full mask covers the whole of the face. This means that that the breathing apparatus must be integrated into the mask. A full mask is far more common in scuba diving.


Worn on your feet, fins increase your potential for efficiency and speed when kicking, which is due to their huge surface area, and other features such as vents. The reason why divers wear them is that it means that you can move through the water purely by the use of your feet, therefore it frees up your upper body completely.

Diving Tank

Without your diving tank, you’d only be able to be under the water for as long as your lungs can handle. Which wouldn’t be very long at all? The diving tank contains the essential compressed air or gas mixtures that you will breathe while diving.


The other part of your breathing apparatus, besides the diving tank, is the regulator. This screws into the diving tank. And it also will go into your mouth or connect to your full-face dive mask. Its purpose is simply to reduce the pressure of the gas in your tank to ambient pressure which you are then able to breathe.

Dive Computer

Dive computers come in a huge range of sizes, shapes, and offer lots of functions. But their main purpose is to monitor and measure the time and depth of your dive. This then means that it can warn you or advise you as to the ideal ascent rate and if you missed any decompression stops. Some dive computers will also monitor the levels of gas in your tanks. Many can be worn on the wrist, like a watch.

Pressure Gauge

This piece of equipment has a single purpose which is to tell you how much gas you have in your diving tank. This knowledge is extremely important so that you’re able to regulate breathing and plan your ascent.

Depth Gauge

This is another simple piece of equipment that has one purpose, which is to gauge your depth, therefore telling you what depth you are at while you are underwater, and it will also show you your maximum depth.

Buoyancy Control Device

The buoyancy control device – also known as BCD – is worn by a diver to make sure that neutral buoyancy is established. This basically means that it stops you from sinking to the ocean bed or floating back up to the surface of the water. It is manually operated and requires a lot of attention.


A snorkel is a tube that is usually made from plastic or rubber. One end is put into the diver’s mouth, while the other should be above the surface of the water, therefore allowing the diver to breathe. Scuba divers use these when near the surface so that air in the diving tank can be reserved for greater depths.

Dive Knife

A dive knife is a knife with a serrated edge and is usually made from stainless steel or titanium. It offers divers security underwater, so if they become entangled in a fishing net, for example, they can cut themselves free.

Surface Signaling Device

There is a range of signaling devices available, such as lights, whistles, and air horns. These are basically used to attract attention if the diver is at the surface and needs help.

Now you know all the most important pieces of equipment for scuba diving. After your first dive, you will quickly become acquainted them. I hope you enjoy your scuba diving adventures!

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Snorkeling and diving are two very enjoyable water sports that allow you to see the beauty of the underwater world, while also offering your body great exercise, but they can be dangerous too, so read this guide, and then you’ll know how to stay safe when snorkeling and diving.

Are Snorkelling and Diving Right for You?

Both snorkeling and diving appeal to people of all ages and sizes, but before you think about strapping on a snorkel face mask and putting a scuba regulator in your mouth, you need to think carefully about whether you are going to be capable of snorkeling or diving.

You don’t need to be Michael Phelps to go snorkeling, of course, but you must be in relatively good physical shape and also you should be a confident swimmer too. Your body should also be in good working order too, so if you have been seriously ill recently or suffered a major injury, then consider waiting until you’re fully recovered before you take the plunge.

Research Before You Dive

Woman standing over the body of the water

It’s a good idea for any budding snorkeller or diver to do some research before getting into the water.

For snorkellers, this will include acquainting yourself with what equipment you should buy to wear during your snorkeling, and it also will be choosing a place to snorkel where the water isn’t too cold, and where you know there aren’t any major hazards, such as big, unpredictable waves.

For divers, you will need to receive training prior to your first dive. Therefore, it is important to choose a dive school that has a good reputation. A bad teacher can leave you in danger, so making sure you’re learning from an experienced, trustworthy instructor will help to keep you safe.

You can prepare for the training by learning about the essential diving equipment you need for a dive, and what role they play in keeping you safe. Once you’re on the diving course, then do not be afraid to ask your instructor lots of questions. The more information that you have when you’re underwater, the safer you’ll be.

Prepare your Body

The two most important things that you can do at home prior to snorkeling or diving is to start swimming more regularly so that the muscles you’ll be using while snorkeling or diving will be less likely to tire easily, which could put you in danger. You should also spend some time doing breathing exercises too.

When it comes to diving, you have to be able to breathe calmly, regularly, and deeply at all times. A short breath or holding your breath can cause dire consequences, so some practicing of the right breathing methods will keep you safe.

Plan Your Dive

Every experienced diver will tell you that you must plan every single dive thoroughly. What does this mean? You need to know what the maximum amount of time for the dive is, and you also need to know the maximum depth. On top of this, you should have knowledge of how to navigate the dive, if you’re not diving with a guide.

Always Dive or Snorkel with a Partner

You should never consider diving alone. Safety comes in number, and the magic number for snorkeling and diving is two. You need to have a buddy. Prior to diving, make sure that you have agreed what signals you will use, as these sometimes differ in certain places in the world, and, actually, it is possible that the same symbol might mean something different to your partner.

Plan your route with your buddy, and also make sure that you have discussed what will happen in case of emergencies. You both need to have a plan for what you will do if you are in danger.

How to Avoid Decompression Sickness

Before you even consider putting your diving gear on, you must make sure that you’re fully hydrated. And that hydration cannot be through alcohol. You should never consider putting yourself at danger by drinking alcohol before a dive. Good hydration is an important element of avoiding DCS.

A safe ascent means a safe dive, so do not ascend at a rate more than 10m per minute.

You should also make sure that you don’t over dive. Each day limit your number of dives to three at the very most. And you should never dive more than three days in a row. A rest day is imperative after either two- or three-days diving in a row.

After you dive, don’t get on an airplane or ascend to a high altitude for at least 24-hours afterward.

What to do in Case of Emergency

Don’t panic. Focus on your breath. Remember your training.

These are the three most important rules for what you need to do in emergencies. If you panic, you will either breathe shorter breaths, which will use up your oxygen quicker, or you may even stop breathing. That’s why you should focus on your breath. If you hold your breath, then you’re putting yourself in huge danger.

Keep calm, and take deep, long breaths, and then remember what you were taught in your training. You should have been prepared for all eventualities, so now is the time to use that training.

Don’t Stray Too Far from The Shore

Snorkellers can find themselves so focused on the beautiful underwater delights that they don’t take notice of how far from the shore they have swum. Check regularly where you are, as if you swim too far from the coast, you could find yourself in choppier waters or even surround by sharks.

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