Pushing himself to the limits of human endurance is something that apparently comes as natural to Kilian Jornet as using the TV remote does to the rest of us.
And he’s at it again. The Spanish mountaineer and multiple Ultra-Trail du Mont-Blanc (UTMB) champion, with countless Fastest Known Times (FKTs) for mountain ascents and descents (including the Matterhorn and Mont Blanc) and who already summited all 177 peaks over 3,000m in the Pyrenees in just eight days last year, is currently in the opening stages of his biggest challenge yet.
