Underwater Diving

Underwater diving is the practice of descending below the water's surface to conduct underwater activities. In ambient pressure diving, the diver is exposed to the pressure of the surrounding water, and uses breathing apparatus such as that used for scuba diving or surface supplied diving, or when freediving, will breath-hold for the duration of the dive.

A U.S. Navy diver enters the water during a training evaluation

Readings

1. Wikipedia: Underwater diving
2. Wikipedia: Freediving
3. Wikipedia: Scuba diving

See Also

• Commercial diving
• Filling Scuba Cylinders