Free-diving
Free-diving is a form of underwater diving that relies on the diver's ability to hold their breath until resurfacing rather than on the use of breathing apparatus such as scuba gear. Free-diving can be done recreationally, competitively, or professionally, and requires a high level of physical and mental discipline. The sport of free-diving includes various disciplines such as constant weight, free immersion, and variable weight, each with its own set of rules and challenges. Free-diving can be dangerous and should only be attempted by trained individuals with proper equipment and safety measures in place.
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