The vertical climb is 150 feet of constant regrets at every turn, as it would appear to an ordinary human. The low-frequency noise the waterfall makes is enough to scare the best of us.
But Gadd is anything but an ordinary human. And he chose the most treacherous of Niagara’s three sides to prove it – the Horseshoe Falls, described by other climbers as 'unclimbable' .... http://rt.com/usa
