Stock Photo: Freediving or free-diving is a form of underwater diving that does not involve the use of scuba gear or other external breathing devices, but rather relies on a diver´s ability to hold his or her breath until resurfacing Examples include breath-hold spea. Freediving or free-diving is a form of underwater diving that does not involve the use of scuba gear or other external breathing devices, but rather relies on a diver´s ability to hold his or her breath until resurfacing Examples include brea