A visual of our Canyon section. If you want to experience Class IV rafting in Idaho, this is the section for you. The reservoir fed Canyon section has 25 class III/IV rapids and a portage around a waterfall. You will enjoy lunch on river, a jump rock and a stop at a hotsprings. There is a 12 year age limit for this section. Because of the remoteness of this trip, you do need to be able to walk on uneven ground and be somewhat physically fit.