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This is a glossary of technical terms, jargon, diver slang and acronyms used in underwater diving.The definitions listed are in the context of underwater diving.
Scuba skills are skills required to dive safely using self-contained underwater breathing apparatus, known as a scuba set. Most of these skills are relevant to both open-circuit scuba and rebreather scuba, and many also apply to surface-supplied diving. Some scuba skills, which are critical to divers' safety, may require more practice than ...
For example, due to the long swims involved in California shore diving, divers use snorkels until they reach a good start point for a dive to maximise air supply for the actual dive. [ 96 ] A snorkel can be a useful substitute for a pocket mask for in-water EAR , a diving accident victim can be towed and have rescue breathing administered ...
Muck diving gets its name from the sediment that lies on the bottom at many dive sites - a frequently muddy or "mucky" environment. Other than muddy sediment, the muck dive substrate may consist of dead coral skeletons, garbage and natural detritus. The visibility is usually less than on the reef or wreck sites of the area. However, the ...
One example being its "Janus 4" open-sea dive to 501 metres (1,640 ft) in 1977. [ 2 ] [ 3 ] The open-sea diving depth record was achieved in 1988 by a team of COMEX and French Navy divers who performed pipeline connection exercises at a depth of 534 metres (1,750 ft) in the Mediterranean Sea as part of the "Hydra 8" programme employing heliox ...
Scuba diver in Panama. Recreational diving may be considered to be any underwater diving that is not occupational, professional, or commercial, in that the dive is fundamentally at the discretion of the diver, who dives either to their own plan, or to a plan developed in consensus with the other divers in the group, though dives led by a professional dive leader or instructor for non ...
For example, one diver would perform a forward dive and the other an inward dive in the same position, or one would do a reverse and the other a back movement. In these events, the diving would be judged both on the quality of execution and the synchronicity – in timing of take-off and entry, height and forward travel.
CMAS** scuba diver is a certification for recreational scuba diving issued by the Confédération Mondiale des Activités Subaquatiques (CMAS). which indicate that the diver has been found competent to dive in open water to a maximum depth of 40 meters, accompanied by another diver with equivalent or higher certification, with no dive leader ...