Underwater sports

thumb|A freediver on the ocean floor

underwater sport of pushing a puck into the opposing goal

Finswimming is an underwater sport consisting of four techniques involving swimming with the use of fins either on the water's surface using a snorkel with either monofins or bifins or underwater with monofin either by holding one's breath or using open circuit scuba diving equipment. Events exist over distances similar to swimming competitions for both swimming pool and open water venues. Competition at world and continental level is organised by the Confédération Mondiale des Activités Subaquatiques (CMAS, World Underwater Federation). The sport's first world championship was held in 1976. I

underwater team sport

thumb|Spearfisher Monument in Croatia

thumb|A freediver using a monofin thumb|Herbert Nitsch wearing a monofin at the Cyprus BIOS 2004 Freediving Open Classic

sporting activities conducted underwater

swimming

competitive underwater breathhold wrestling

underwater team sport using snorkeling equipment and an American football

sport with divers catching octopuses barehanded

variant of ice hockey played upside-down underneath frozen pools or ponds on breath-hold

underwater compass navigation and speed competition on scuba.