A superpipe is a large halfpipe, a structure used in gravity extreme sports such as snowboarding, freestyle skiing, skateboarding, freestyle BMX and inline skating. A half-pipe is a structure used in gravity Extreme sports such as Snowboarding, Skateboarding, Skiing, freestyle BMX and Extreme sport (also called action sport and adventure sport) is a media term for certain activities perceived as having a high level of inherent Snowboarding is a sport that involves descending a Snow -covered slope on a Snowboard attached to a participant's feet using a special boot set into a mounted binding Freestyle skiing began in the 1930s when Norwegian skiers began performing acrobatics during alpine and cross-country training Skateboarding is the act of riding and performing tricks using a Skateboard. BMX ( Bicycle Motocross) is a form of Cycling on specially designed bicycles which usually have 20 inch wheels Roller skating is the Traveling on smooth terrain with roller skates Superpipes generally have over 16 feet (4. 9 m) walls on both sides that are nearly 90 degrees vertical; a standard halfpipe has 11 foot (3. 35 m) high walls. Superpipes are wider than they are tall. They are also longer and wider than traditional halfpipes and allow riders to get higher out of the pipe and perform bigger tricks. It takes a special type of groomer to groom a superpipe, while halfpipes can be groomed with a typical snow groomer. Superpipes are becoming the new standard for pipe competitions.