So I’m no pro. Toon in dry falls for starters, years later I’ve floated the Sky, Klick, Hoh and the Calawah. Is there some literature or something online that lists class levels of rivers? Some thing that might include what class they would be at known CFS rates? What literature might be useful from the whitewater rafting books? I see you can get certifications for the big hydraulics. Is it worth it? Also, hiked into boulder drop on the Sky several weeks back. What class level is that and how the hell do you get through it?