The Snake River has carved its way deep into the Earth’s surface to create the massive walls of Hells Canyon. While hiking, camping, fishing, kayak - ing and rafting are great ways to see this amazing attraction, jet boat tours offer something truly different. Hells Canyon is most easily accessed from Lewiston. From White Bird, part of the road is gravel but doable in passenger cars. Idaho Outfitters and Guides Association can provide contacts for guided trips.