I have just finished watching the full version of Chasing Niagara (just over 1 hrs worth of action). It has been available for a while via iTunes at a cost. However it is currently available to watch for free on Red Bull TV.
CHASING NIAGARA follows Rafa Ortiz, a celebrated pioneer of big waterfall kayaking, as he pushes himself to the limit and redefines his sport by daring to dream the impossible – successfully descending Niagara Falls. To prepare for this highly dangerous drop, Ortiz enlists a team of fellow professional kayakers, including Rush Sturges, Evan Garcia, and Tyler Bradt, to help him train and document the process. As they take on lightning fast rapids and massive waterfalls in exotic locales, they soon find that what started as one man’s epic quest, evolves into an intense three-year journey of self-discovery and friendship that forces them to redefine their own definitions of bravery, purpose, and ambition.
Huge waterfalls, near death experiences all captured in such a way that makes Chasing Niagara appealing to both paddlers and non-paddlers. In terms of the way in which Chasing Niagara has been put together and the action within it, it is probably the best kayak related video I have seen.