“It was like juggling while standing on a bowling ball covered in Vaseline rolling down a tight rope,” Kai Lenny said that of his mission to kiteboard through the rapids of the Yellowstone River … up river. Now, that quote might sound a little hyperbolic, but this is coming from a guy who just finaled at the Pe’ahi Big Wave Challenge at Jaws. A guy, who earlier this year, kiteboarded, SUPed, hydrofoiled and sailed between the treacherous open-ocean channels of each Hawaiian Island (to raise awareness for beach cleanups).