Rivers and the rapids they contain are rated according to a class system. The levels range from Class I (moving water with some gentle interference) all the way to Class VI (extreme rapids and waterfalls that are rarely attempted even by experts).
The whitewater on the Yellowstone River is primarily rated as class II and class III, which means that the river channels are wide and the waves moderately sized, creating big splashes and fun hits. During the early part of our season in May and June, some sections of our full day trip boast more difficult whitewater, but all sections of the Yellowstone are well suited for anyone ready for adventure!