Finswimming is an underwater swimming sport where athletes race against each other with the use of floating and breathing equipment like masks, fins, snorkels and scuba diving set.
Finswmming competitions are conducted on both swimming pool and open waters. Competitions in swimming pools future short distance races, while long distance races are conducted in open waters.
Four techniques are used for finswmming, and races are conducted separately for all techniques. The techniques are:
Surface swimming : Swimmers use mask, snorkel and monofins, and must always remain at the surface of the water. Individual races for 50, 100, 200, 400, 800, 1500 meters and relay races for 4 × 100 and 4 × 200 meter are held for his technique.
Bi-fins swimming : Swimmers use mask, snorkel and a pair of fins, and swim at the surface of the water. Races for 50, 100, and 200 meters are conducted in a swimming pool, and long distance races of 4km or 6km are conducted in open waters.

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