Once you catch on, you'll know why kite surfing — also called kite boarding — is the fastest growing watersport in the world. With your feet attached to a kiteboard (similar to a surfboard but with straps or bindings) and your arms hooked into a harness, which is attached to a kite, it's possible to take a flying leap off flat water and find yourself soaring 40 feet in the air. Kitesurfing, described as a fusion of windsurfing and kite flying, was popularized by Hawaii's Robbie Naish.