Free-diving

Free-diving, also known as apnea diving or spearfishing, is a form of underwater diving that relies on the diver's ability to hold their breath until resurfacing, rather than using scuba equipment.

Free-diving: /ˈfriːˌdaɪvɪŋ/

The term "free-diving" is derived from the concept of diving freely without the use of mechanical breathing apparatus.

Static Apnea: A discipline in which a person holds their breath (apnea) underwater for as long as possible.
Dynamic Apnea: A discipline in which one travels in a horizontal position under water attempting to cover the greatest possible distance.
Constant Weight Apnea: A discipline in which a diver descends and ascends by swimming without the use of fins, without pulling on the rope and without changing his ballast.
Spearfishing: An ancient method of fishing that has been used throughout the world for millennia.
Snorkeling: The practice of swimming on or through a body of water while equipped with a diving mask and a shaped breathing tube called a snorkel.

References

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