waterfalls but he says he's not going to try to break the record. unless someone else breaks it first. it's amazingly adventurous stuff. i can't help but think, what propels you to do this, survival instincts sort of take over, yet do you this very dangerous stuff. why? >> there is no experience like it. i started kayaking at a very young age. it's been my soul focus ever since then, and there is -- the places you're able to go, the experiences you're able to have, and just the sheer thrill of being out on a river and running white water is absolutely unreal. and so it's -- that's my driving force. i just love it. every aspect about it. >> when were you kayaking people say i think that's runable. i remember that from the few times i've kayaked. what you thought was runable was a 189-foot waterfall, taller than niagara falls, for context.