Free divers are individuals who practice the sport of freediving, which involves diving underwater without the use of breathing apparatus. Instead of relying on tanks, free divers hold their breath while exploring the ocean depths. This activity requires training in breath control, relaxation techniques, and understanding of underwater safety. Free diving can be done for various purposes, including recreational exploration, underwater photography, and competitive diving. Competitions often test divers on their ability to reach specific depths or distances on a single breath. The sport emphasizes the importance of safety and environmental awareness to protect both divers and marine ecosystems.