An ancient tribe on Easter Island held an annual "Birdman" competition which involved racing down a steep mountain, swimming through shark-infested waters, and waiting days for a bird to lay an egg, nab it, and then race back.
22Plunge for distance
The plunge for distance is a former Olympic sport in which contestants plunged into the water and, without moving any of their limbs, float as far as they can for 60 seconds. A sportswriter in the New York Times described it as "slowest thing in the way of athletic competition".
There is a sport called Banzai Skydiving. You throw the parachute out of the airplane first and then jump after it.
24Battle of Nations
Battle of Nations is an international, full-contact, historical medieval competition where people wear real armor and fight with real weapons every year in a castle in Europe.
25Hide and Seek World Championship
There is an annual international hide and seek world competition that is held in a ghost town in Italy.