| Scuba diving is using a self-contained breathing set to stay underwater for periods of time greater than human breath-holding ability
allows. The diver carries all equipment necessary for diving and is not reliant upon equipment elsewhere
(e.g. on the surface) to supply breathing gas or other support during the
dive. The diver swims underwater using fins attached to the feet. Some divers also move around with the assistance of a DPV
(Diver Propulsion Vehicle), commonly referred to as a "scooter", or by using surface-tethered devices called
sleds, which are pulled by a boat. |
