The opportunity for intermediate and advanced skiers to take the first runs in the morning before the slopes open to the public is an option at more resorts. Some, like Northstar in California, require skiers to stay with a guide; others, like Aspen, Colo., include a gourmet breakfast. Steamboat Springs, Colo., has been experimenting with multiple day First Track passes, some of which can be shared among buddies.
From the Norwegian word meaning "ski driving," skijoring is still primarily the stuff of winter carnivals and cowboy competitions. But some places, like the adult-only Triple Creek Ranch in Darby, Mont., offer guests the chance to see what it's like to be pulled on Alpine skis behind a horse. Other resorts, like Eden Mountain Lodge in Eden Mills, Vt., and Devil's Thumb Ranch in Tabernash, Colo., work with experienced skiers and their own dogs to learn what it's like to go mushing on Nordic skis.
These massive ice castles are formed by thousands and thousands of icicles. A series of pathways take visitors through ice columns, tunnels, caverns and archways. Introduced last year in Silverthorne, Colo., the castles were being built this winter in Steamboat Springs, Colo., and at the Mall of America in Bloomington, Minn.
Bicycles that ride on skis, rather than wheels, have been around in various forms for decades, but now they have the blessing of some ski resorts, which rent the bikes and offer instruction. Smaller skis clip to your ski boots, helping with balance and maneuvering. The bikes can be taken on the chairlifts to access a variety of terrain; http://www.snowbike.info .
Snowkiting or kite boarding is a cousin to ocean kite surfing. For the winter version, an experienced, fearless skier or snowboarder is harnessed to a kite and uses wind power to propel themselves around. An extreme sport, it requires strength and an understanding of wind patterns. Lessons are recommended.