Here are two sweet videos of whitewater kayakers running the Little White Salmon River in southern Washington.
The first is the Little White Salmon Race in 2012 - while we're at it I should mention that the 2013 Little White Salmon Race is coming up soon, on May 26. Congrats to local kayaker Darren Allbright on tying for 2nd place in a super-competitive field in 2012!
The Little White is a really hard Class V river that is challenging enough that it's not even on a lot of peoples' bucket lists. The first major rapid, Gettin' Busy, is around half a mile of solid Class V boulder garden that I've heard you really need to have some cardio endurance to get through reasonably well.
Spirit Falls is the crux of the run, a 33-foot waterfall with a challenging entry and difficult landing zone that has a secondary crux move below it, Chaos, for which you need to be upright and in your boat in order to go far left to avoid a dangerous hydraulic on the right.
Obviously speaking from second-hand info here, it's not where I hang out but my husband Mike has run it a few times. In fact, here's a great photo of him doing Spirit Falls in the snow.
Here's a cool helicopter-view video of Rush Sturges and Steve Fisher running the Little White. It's a nice alternative to the usual head-cam view, and the shots through the trees along with the music give it kind of an other-worldly feel - I'm a fan.