Rafting the Chilko is a river rafting experience filled with many stretches of Class IV whitewater. It's the longest stretch of commercially run whitewater in North America. You’ll drop about 3,000 feet in altitude, starting on top of a mountain forest and going down into a desert canyon. Bidwell is a Class IV “S-bend” rapid with big breaking waves and a huge hole at the bottom. Five people died during a rafting trip there in 1987. You can see rafting Bidwell rapid in this video.