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A freediver on the ocean floor. Freediving, free-diving, free diving, breath-hold diving, or skin diving, is a mode of underwater diving that relies on breath-holding until resurfacing rather than the use of breathing apparatus such as scuba gear.
Freediving is a mode of underwater diving in which the dive is done on breathhold. It includes freediving for hunting and gathering, for observing the underwater environment, to carry out such tasks as are possible, and as an underwater sport , considered an extreme sport , in which divers attempt to reach great depths without breathing apparatus.
Deep, decompression diving is necessarily required to effect penetration diving on the WKPP. Extended dive duration and surveys of previously unexplored parts of the cave system exposed divers to unprecedented exposures. Diving of this type is subject to increased level of risk and increased risks require more stringent mitigation.
The freediving breaststroke technique used for CNF dives. Constant weight without fins (CNF) is an AIDA International (International Association for Development of Apnea) freediving discipline in which the freediver descends and ascends by swimming without the use of fins or without pulling on the rope or changing his or her ballast; only a single hold of the rope to stop the descent and to ...
Greatwood is an international freediver. He set two UK records, Free Immersion -47m and Constant weight No fins -25m, in NDAC in 2003. [3] and bettered the Free Immersion to 50m in 2004. [2] In 2007 he was ranked 13 in the World. He started competing again in 2010. [4] [5]
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Diving as deep as possible with the use of fins or a monofin. CWT ICE = Constant weight with fins under the ice in cold water. Diving as deep as possible with the use of fins or a monofin. CNF = Constant weight without fins. Diving as deep as possible without fins. FIM = Free Immersion. Diving as deep as possible by pulling down and up the rope.
Free diving to extreme depth. It can be avoided by limiting free diving depth to capacity of lungs to compensate, [35] and by training exercises to increase compliance of chest cavity. [citation needed] Rupture or supply pressure failure of a surface supply hose with simultaneous failure of the non-return valve. [35]
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