Klamath

I've paddled a couple of sections between Sarah Totten and Happy Camp;
Blue Heron (just above Sarah Totten) to O'Neil Creek and
Portugese Creek to China Point
Neither of these runs have much in the way of whitewater but make pleasant floats/fishing trips in fall when the salmon and steelhead are in the river. Each run does contain at least one class 3 rapid so keep that in mind. On the lower section just below mile post 55 and 'Savage Rapids' is the bronco wave (AKA Marquis) this is a good surf wave and it's in when the Klamath River @ Seiad Valley gauge reads 1,300 to 1,600 cfs. I think 1,500 is best. The most reliable times of year to catch Bronco is in late June to early July and October when flows out of Iron Gate rise but before the fall rains swell the side creeks.