The Whistler Blackcomb Ski and Snowboard Cross events are recreational competitions open to all ages. Amateur skiers and boarders will compete in different age and discipline divisions on the Nintendo Terrain Park Snowcross course. Places are limited in each category. Pre-registration is strongly recommended through Whistler Blackcomb Guest Relations and Ski School Sales locations.
Article source: http://www.whistlereventsguide.com/node/6926