Deepline | A Highline 500 meters underground [Trailer]

In summer 2016 German Slackliner Lukas Irmler climbed down the french Cave Gouffre Berger to walk a Highline 500 meters underground. Together with a team of French Slackliners and Cavers he aimed for a new world record in what they call „Deeplining“. Their trip was a fascinating journey back to the roots of Petzl.