Colorado River, Vail, Colorado
The most hardcore class five in the state of Colorado, and one of the three most technical raft trips in the United States, braving Gore Canyon requires a swim test, high level of physical fitness and adventurous spirit. With 12-foot drops and two portages, the river offers a challenge to even the most experienced rafters. When your stomach stops churning, look forward to a barbeque lunch at the takeout.
Timberline Tours
http://timberlinetours.com