Kilian Jornet under the Northern Lights with Petzl

On a long November night in Norway, ultrarunner and Petzl team member Kilian Jornet trains on a never-ending knife-edge ridge overlooking the dark fjords. Way up high, during the frigid windy night, Kilian attempts to make the aurora borealis – the Northern Lights – appear.

Info: www.petzl.com