Diving
Diving was the act of jumping or falling from a height into water or air. It could also mean swimming beneath the surface of the water.

Kristin was injured twice while diving off the Cliffs of Heaven in a recreation of Sumiko IV on the holodeck. ()

Skindiving 
Skindiving is diving without a wetsuit, using a snorkel. Once, Geordi La Forge went skindiving off the coral reef on Bracas V. He would later relate this experience when the  was being pulled through space by what appeared to be a school of two-dimensional beings. ()

Scuba diving 
Scuba diving is diving with special self-contained breathing equipment. 

Charles Tucker III was an experienced scuba diver. He kept a picture of himself scuba diving in his crew quarters on , as well as an antique diving helmet. ()

In 2269, Scotty used a force field instead of a normal wetsuit and breathing apparatus when diving on planet . () 

In 2365, a holoprogram available to crewmembers of the  was "Scuba Diving Hanauma Bay Earth". The program, with a code list number of 03-889, was listed in the exercise menu. (, okudagram)

See also
 Orbital skydiving

External links 
 
 
Exercise
Deleted and unused material in background