the sport or activity of riding a bicycle over hills and rough ground

• street luge

• motocross

• mountain biking

• rock climbing

the sport of descending a steep road or track on a large type of skateboard on which riders lie on their backs, descending feet first

• motocross

• street luge

• freediving

• rock climbing

the sport of racing over rough ground on special motorcycles

• paragliding

• motocross

• rock climbing

• street luge

the activity or sport of moving on skis at speed

• football

• rock climbing

• speed skiing

• water rafting

a sport in which you sail across water by standing on a board and holding onto a large sail

• rock climbing

• motocross

• water rafting

• windsurfing

the activity or sport of swimming as deep as you can under water without using breathing equipment

• freediving

• speed skiing

• street luge

• motobiking

the sport of jumping out of an aircraft with a special parachute that allows you to travel a long horizontal distance before you land

• rock climbing

• windsurfing

• paragliding

• freedivig

the sport of climbing on rocks or in mountains

• water rafting

• motocross

• rock climbing

• speedskiing

the activity of being moved quickly in a raft (= small boat filled with air) along rivers where the current is very strong

• white-water rafting

• motocross

• mountain biking

• speed skiing