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surface members of the dive team. In professional diving, diver communication is usually between a single working diver and the diving supervisor at the surface...

door" gesture, for "get out of here!" In scuba diving, the thumbs-up gesture is a specific diving signal given underwater, in which the diver indicates...

scuba diving in North America that it is also used to indicate a place where there are services for divers, for example stores selling or renting diving equipment...

Scuba diving is a mode of underwater diving whereby divers use breathing equipment that is completely independent of a surface breathing gas supply, and...

diver may dive on breath-hold (freediving) or use breathing apparatus for scuba diving or surface-supplied diving, and the saturation diving technique...

International maritime signal flags are various flags used to communicate with ships. The principal system of flags and associated codes is the International...

Diving support equipment is the equipment used to facilitate a diving operation. It is either not taken into the water during the dive, such as the gas...

live-boat diving). There are a range of specialised procedures for boat diving, which include water entry and exit, avoiding injury by the dive boat, and...

Diving equipment, or underwater diving equipment, is equipment used by underwater divers to make diving activities possible, easier, safer and/or more...

Freediving, free-diving, free diving, breath-hold diving, or skin diving, is a mode of underwater diving that relies on breath-holding until resurfacing...

Night diving is underwater diving done during the hours of darkness. It frequently refers specifically to recreational diving which takes place in darkness...

Standard diving dress, also known as hard-hat or copper hat equipment, deep sea diving suit or heavy gear, is a type of diving suit that was formerly...

diving is intended to enhance the safety of scuba diving by having two or three competent divers acting as safety divers for each other during a dive...

permitted, or where secrecy is desired. Charades Diving signals — hand communication methods while scuba diving Flag semaphores — telegraphy systems using hand-held...

A dive start is the action begun at the start of a swimming race. In most strokes, the swimmer jumps off the diving blocks after hearing the starting...

Diving bells are usually suspended by a cable, and lifted and lowered by a winch from a surface support platform. Unlike a submersible, the diving bell...

Surface-supplied diving is a mode of underwater diving using equipment supplied with breathing gas through a diver's umbilical from the surface, either...

Deep diving is underwater diving to a depth beyond the norm accepted by the associated community. In some cases this is a prescribed limit established...

is provided as an overview of and topical guide to underwater diving: Underwater diving can be described as all of the following: A human activity – intentional...

diving operations. There is no reason to assume that they cannot be valuable tools for commercial diving operations, especially on multi-level dives....