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How to Become a Deep Sea Diver
Deep diving is for very experienced divers only, but divers of all abilities should be aware of the dangerous and sometimes frightening effect that water under pressure has on their…
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How to Cave and Cavern Dive
On most ordinary dives, if things go wrong the diver can simply ascend towards the safety of the surface. That is not an option when there is a cave or…
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How to Ascend in Scuba Diving
Going slow You should always ascend slowly from a dive. This rule is as important as never holding your breath while scuba diving. Coming up in a controlled manner at…
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How to Choose a Diving Light
Why use a light? If you are diving in conditions with poor visibility it will be dark underwater. A diving light will help you see and be seen. If you…
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How to Choose a Buoyancy Compensator for Scuba Diving
Keeping buoyant In its simplest form, a buoyancy compensator, or BC, is merely a bag that you can put air into during the descent and let air out of as…
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How to Choose a Diving Computer
Underwater computers Miniature electronics have revolutionised everyday life and have made their presence felt in the world of diving, too. It's hard to believe there was a time when divers…
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How to Choose a Mask, Fin and Snorkel for Scuba Diving
The whale watching california take you to see the California Grey Whale (Eschrichtius robustus) is a whale that travels between feeding and breeding grounds yearly. It reaches a length of…
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How to Choose a Drysuit for Scuba Diving
Functions of a drysuit Drysuits are used in temperate climates where the water may not be very warm. The core function of a drysuit is to keep you dry. To…
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How to Choose Compressing Gases for Scuba Diving
Filling tanks It is possible to compress a lot of gas into a small space. The total mass of the gas remains the same, but the molecules are pushed closely…
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How to Choose Gadgets for Scuba Drivers
Dive shops are full of gadgets for divers but there are few that you will actually need. If you take too many unnecessary items with you on a dive, they…
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How to Choose Hoods and Gloves for Scuba Diving
Head cover Our brains need a plentiful supply of blood to work properly but can't do so in the cold. Yet few of us have much naturally provided thermal insulation…
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How to Choose Regulators and Pressure Gauges for Scuba Diving
A typical regulator reduces the pressure of the air in the tank in two stages so that, at the mouthpiece, it exactly matches the pressure of the water surrounding it.…
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How to Choose the Right Wetsuit and Semi-Dry Suit for Scuba Diving
Why wear a suit? Water conducts heat 25 times more efficiently than air. That's why water is usually used to conduct heat in central heating systems. Your body makes heat…
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How to Choose Watches, Depth Gauges, and Compasses for Scuba Diving
Essential further information for divers As well as knowing the amount of air in their tank, the three basic pieces of information that divers need to know are: the amount…
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How to Choose Weights and Weightbelts for Scuba Diving
Weighed down Most people are naturally neutrally buoyant. With a normal relaxed lung volume, they neither float nor sink. If they take a deep breath, they will float. If they…
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How to Communicate Underwater with Signs and Signals
You can't talk underwater unless you and the person you want to talk to have expensive communications systems. Sign language Normally, you will have to use signs and signals to…
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How to Clear a Mask and Mouthpiece While Diving Deep in the Ocean
Wearing a mask You should never strap a mask so tightly to your head that the frame distorts. Doing so will cause the mask to sit uncomfortably on your face,…
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How to Clear Your Ears in Scuba Diving
Ear problems Many people say that they cannot learn to dive because they get pain in their ears when they swim underwater. This is not surprising because if you don't…
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How to Conquer Your Fears in Scuba Diving
First fears When you first struggle into a wetsuit and strap on that heavy tank and those big weights, it's quite disconcerting. You could be forgiven for thinking you might…
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How to Control Your Buoyancy in Scuba Diving
Perfect weightlessness The art of diving is to achieve perfect weightlessness. This means having control of your buoyancy - to be neither floating up nor sinking down and to be…