Freediving, free-diving, or free diving is a form of underwater diving that relies on a diver`s ability to hold his or her breath until resurfacing rather than on the use of a breathing apparatus such as scuba gear. Examples include breath-hold spear fishing, freedive photography, recreational breath-hold diving, apnea competitions, freediving sh....
breath-hold diving, where no scuba equipment is used, also called apnea.
Diving deep or staying underwater for extended periods of time without an air tank.