Underwater diving is the practice of going underwater, either with breathing apparatus (scuba diving and surface supplied diving) or by breath-holding (freediving).
Recreational diving is a popular activity (also called sports diving or subaquatics). Professional diving (commercial diving, diving for scientific research purposes or diving for financial gain) takes a range of diving activities to the underwater work site.
Training, types of equipment used and breathing gases used depend on the type of diving.
Underwater diving includes Free-diving, Scuba diving, Surface-supplied diving, Saturation diving, and diving in Atmospheric diving suits.
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Freediver with monofin, ascending.
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Recreational scuba diver
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Surface supplied diver riding a stage to the underwater workplace.
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Closed bell used to transfer saturation divers from the workplace to the hyperbaric life support system.
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US Navy Atmospheric Diving System (ADS)
Read more about Underwater Diving: History, Reasons For Diving, Diver Training, Hazards of Diving
Famous quotes containing the word diving:
“A worm is as good a traveler as a grasshopper or a cricket, and a much wiser settler. With all their activity these do not hop away from drought nor forward to summer. We do not avoid evil by fleeing before it, but by rising above or diving below its plane; as the worm escapes drought and frost by boring a few inches deeper.”
—Henry David Thoreau (1817–1862)