Snowboarders, can’t wait till winter? Try mountainboarding, which marries the sport with skate-boarding (do tricks on dirt or grass). The boards feature knobby wheels that grip the ground. Try the Jeep Renegade model ($200; mbs.com ), with a hand brake to feather your speed. Beginners should start with a lesson. Home to the U.S. Open Mountainboarding Championships (July 20-22), Colorado’s Snowmass ski resort offers half-day beginner packages complete with a board and pads for $68 ( aspensnowmass.com ). For a spot near you, go to dirtheads.com . Just don’t forget your helmet.