Radical sports

Radical sports

Air sports

BASE jumping, "is an activity that employs an initially packed parachute to jump from fixed objects, as with paragliding. "B.A.S.E." is an acronym that stands for four categories of fixed objects from which one can jump: buildings, antennae, spans (bridge), and earth (cliff)." Wiki

bungee jumping,

gliding, "is a recreational activity and competitive air sport[1] in which pilots fly unpowered aircraft known as gliders or sailplanes using naturally occurring currents of rising air in the atmosphere to remain airborne" (Wiki)

hang gliding, "is an air sport in which a pilot flies a light and unmotorized foot-launchable aircraft called a hang glider"

high wire," is the art of walking along a thin wire or rope, usually at a great height" wiki

ski jumping, "is a sport in which skiers go down a take-off ramp, jump and attempt to land the farthest down on the hill below." Wiki

sky diving, "Parachuting, also known as skydiving, is the action of performing acrobatics during freefall, followed by deployment of a parachute. " Wiki

sky surfing, "is a type of skydiving in which the skydiver wears a board attached to his or her feet and performs surfing-style aerobatics during freefall." wiki

sky flying. "is the sport of flying the human body through the air using a special jumpsuit, called a wingsuit, which adds surface area to the human body to create lift" Wiki

Land sports

indoor climbing,

adventure racing,

aggressive inline skating,

BMX,

caving,

extreme motocross,

extreme skiing,

freestyle skiing,

land and ice yachting,

mountain biking,

mountain boarding,

outdoor climbing,

sandboarding,

skateboarding,

snowboarding,

snowmobiling,

speed biking,

speed skiing,

scootering

street luge.

water sports

barefoot water skiing,

cliff diving,

free-diving,

jet skiing,

open water swimming,

powerboat racing,

round the world yacht racing,

scuba diving,

snorkeling,

speed sailing,

surfing,

wakeboarding,

whitewater kayaking,

windsurfing.