Colorado Riff Raft's adventures revolve around the beauty of the Roaring Fork river in Aspen, the red rock grandeur of Glenwood Canyon on the mighty Colorado and the nationally renowned waters of the Arkansas. Since 1979, they have brought the excitement of white water rafting not only to families and first time rafters, but also to veteran boaters looking for the ultimate in Class V thrills. They offer 3 levels of adventure: Explorer, Expedition, and Extreme.