The Vertical Jungfrau Marathon
Watch Roger Schäli and David Heftis complete the first one-day ascent of this unique challenge that takes entails 3,200 meters of vertical climbing to reach the summit of the 4,156-meter Jungrau.
Watch Roger Schäli and David Heftis complete the first one-day ascent of this unique challenge that takes entails 3,200 meters of vertical climbing to reach the summit of the 4,156-meter Jungrau.