Extreme sports

Describes the history of mountain bike racing and the equipment, skills, techniques, and safety concerns involved in this competitive sport.

Describes the history of in-line skating and the equipment, techniques, skills, and safety concerns involved in this sport.

Describes the history, equipment, techniques, competition, and safety concerns related to the sport of boardsailing or windsurfing.

Describes the history, techniques, practice, and competition related to the sport of barefoot waterskiing.

Describes the history, equipment, and contemporary practice of snow mountain biking.

Discusses the history, stunts, competitions, equipment, and safety measures of bungee jumping.

Describes the history, equipment, and contemporary practice of bicycle stunt riding.

Describes the history, equipment, techniques, and safety measures of big air snowboarding.

Introduces the history and development of the sport that combines skateboarding and ice luging.

Describes the history, equipment, and techniques of the relatively new sport that involves a team of skydivers, one surfing and one filming.