Watch FilmoFlix. La Dura Dura is a documentary about climbing in Oliana and Margalef. Directed by Josh Lowell in 2012 and produced by Sender Films, it is part of the Reel Rock 7 series. Chris Sharma has dominated the climbing world for 15 years, but a 19-year-old prodigy, Adam Ondra, is now hot on his heels. The legend and the young outsider team up in Spain to open the world's most perilous climbing route.