the practice of diving underwater without the use of breathing apparatus

素潜り (すもぐり), スキンダイビング
the activity of underwater diving in water-filled caves using specialized equipment

洞窟潜水, ケイブダイビング
the practice of diving beyond recreational limits using specialized equipment and techniques

テクニカルダイビング, 専門的ダイビング
a type of scuba diving where the diver is moved around by currents, allowing the water's flow to carry the diver along

ドリフトダイビング, 流れ潜水
a type of scuba diving where the diver dives underwater at night using specialized lights

ナイトダイビング, 夜間ダイビング
a type of scuba diving where the diver explores sunken ships and other underwater structures

沈船ダイビング, 難破船ダイビング
a condition where sudden pressure changes cause nitrogen bubbles in the body, leading to symptoms like joint pain and fatigue

減圧症, 減圧病
the organisms that inhabit the oceans and other saltwater environments

海洋生物, 海の生物
the duration a diver spends underwater during a single dive, typically measured from descent to ascent

ボトムタイム, 底にいる時間
to swim under water for specific purposes using special swimming and breathing equipment

潜る (もぐる), ダイブする
to swim under water with a hollow tube called snorkel through which one can breathe

シュノーケリングをする, シュノーケルで泳ぐ
a physical underwater activity where individuals swim near the water's surface using a snorkel

シュノーケリング, スノーケルダイビング
a device that reduces the pressure of the air supply to breathable levels and delivers it to the diver underwater

ダイビングレギュレーター, 潜水用レギュレーター
a pressurized tank that holds compressed air for divers to breathe underwater

ダイビングシリンダー, 潜水シリンダー
a device that recycles air, extending dive time while conserving gas

ダイビングリブリーザー, 再呼吸器
a method of providing oxygen to divers underwater on demand to treat decompression sickness or other diving-related injuries

デマンドバルブ酸素療法, 需要弁酸素療法
(diving equipment) a removable plastic or rubber device worn in the mouth to protect the teeth and jaws while using scuba equipment

マウスピース, 口腔補助具
a hollow tube used by swimmers and divers to breathe while their face is submerged underwater

シュノーケル, スノーケル
a device used by divers that allows them to breathe underwater

アクアラング, スキューバタンク
a belt worn by divers to help them stay balanced and not float too much underwater

ウエイトベルト, 重りベルト
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