Kai Lenny and the rapids of the Yellowstone River.

Kai Lenny had a new mission: to kiteboard through the rapids of the Yellowstone River … up river. It takes a hell of a lot to rattle Mr. Lenny’s cage because the young man lives and (practically) breaths all things water-related. But river rapids in one of the wildest places in the contiguous United States? He said about it: “It was like juggling while standing on a bowling ball covered in Vaseline rolling down a tight rope.”