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Thailand Underwater Sports Federation

Finswimming

Experience high-speed swimming with fins in pool and open water competitions.

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About Finswimming

Finswimming is a competitive aquatic sport where swimmers use specialized fins to achieve incredible speeds both on the surface and underwater. Athletes can reach speeds of up to 12 km/h, making it one of the fastest swimming disciplines.

The sport combines elements of swimming technique with specialized equipment, requiring athletes to master both surface and underwater swimming skills while managing their breathing and energy efficiently.

Competition Events

Surface Swimming

Races conducted on the water surface using monofin or bifins over distances from 50m to 1500m.

Apnea Swimming

Underwater races where athletes hold their breath throughout the entire distance, typically 50m.

Immersion Swimming

Long-distance underwater swimming using breathing apparatus over distances up to 1500m.

Open Water

Long-distance surface swimming in natural bodies of water, ranging from 3km to 6km.

Equipment

Finswimming requires specialized equipment designed for maximum speed and efficiency:

• Monofin: A single large fin that binds both feet together, providing maximum propulsion

• Bifins: Two separate fins, one for each foot, allowing for more natural swimming motion

• Snorkel: For surface swimming events, allowing continuous breathing

• Swimming cap and goggles: Essential for competition and training