Hidden Valley is the one place in Rocky Mountain National Park where sledding is allowed. No tows are provided, and you must provide your own plastic sled (sleds with metal runners are NOT allowed), saucer, or tube (if you don't bring your own they may be rented in Estes Park at most any outdoor shop). You walk your sled/saucer/tube up the hill and slide down. It's a pretty gentle hill, being the bottom of the bunny slope of the former Hidden Valley Ski Area. Skiers, snow boarders, and snowshoers may pass but must use caution around sledders, and slow down to yield the right-of-way. A restroom (flush/running water) is at the bottom of the hill by the parking lot. On most weekends when there's an attendant, a warming room is also available. Winter winds can scour the area, causing conditions to vary, so call the park Information Office for the latest information, 970-586-1206.