Hopefully this isn't too much of a departure from the landscape theme with the people in there.
This is Oh Be Joyful Creek near Crested Butte, Co. It's literally a death-defying kayak run filled with waterfalls and all kinds of hazards with no easy way out. I used to paddle the whitewater but was never good or bold enough to try something like this!
IMGP9307-Edit by
Matt Burt, on Flickr