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the practice of diving underwater without the use of breathing apparatus
the activity of underwater diving in water-filled caves using specialized equipment
the practice of diving beyond recreational limits using specialized equipment and techniques
a type of scuba diving where the diver is moved around by currents, allowing the water's flow to carry the diver along
a type of scuba diving where the diver dives underwater at night using specialized lights
a type of scuba diving where the diver explores sunken ships and other underwater structures
a condition where sudden pressure changes cause nitrogen bubbles in the body, leading to symptoms like joint pain and fatigue
the organisms that inhabit the oceans and other saltwater environments
the duration a diver spends underwater during a single dive, typically measured from descent to ascent
to swim under water for specific purposes using special swimming and breathing equipment
to swim under water with a hollow tube called snorkel through which one can breathe
a physical underwater activity where individuals swim near the water's surface using a snorkel
a device that reduces the pressure of the air supply to breathable levels and delivers it to the diver underwater
a pressurized tank that holds compressed air for divers to breathe underwater
a device that recycles air, extending dive time while conserving gas
a method of providing oxygen to divers underwater on demand to treat decompression sickness or other diving-related injuries
(diving equipment) a removable plastic or rubber device worn in the mouth to protect the teeth and jaws while using scuba equipment
a hollow tube used by swimmers and divers to breathe while their face is submerged underwater
a device used by divers that allows them to breathe underwater
a belt worn by divers to help them stay balanced and not float too much underwater
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