You swim under the water with a special air tank.
Scuba diving
You jump from a plane, or a high place, with a parachute.
Skydiving
You ride on the water behind a very fast boat.
Water skiing
You ride on top of the water in a small, narrow boat.
Kayaking
You jump off a high place attached to an elastic rope.
Bungee jumping
You fly in a small plane, without an engine.
Hang-gliding
You try to go up the side of a high mountain.
Rock climbing
You ride on the water with a board on windy days.
Windsurfing