The Hardest Line [Sonntagsvideo]

In January 2014, Calum Muskett and Dave MacLeod will be spending a month in the alpine climbing playground of Patagonia, Argentina. They will be joined by Ally Swinton and photographer Ben Winston. Having climbed together on two of the hardest big alpine rock routes in the Alps over the summer, Calum and Dave are aiming high. They are hoping to make the second free ascent of the Compressor Route on Cerro Torre in a minimalist, lightweight alpine style.

The route has a rich and controversial history spanning almost half a century, dividing the international climbing community and some of its most outspoken characters. Having laid relatively dormant for decades, in recent years it has seen a new flurry of activity which culminated in the first free ascent of the line (dubbed the Southeast Ridge) by Lama and Ortner in 2012.