A Swiss mountain guide shows experienced alpinists how to conquer north faces. This packs one of the last great adventures into a course.
“Allez!” calls mountain guide Jan Ermuth, “Heels down!” His gaze falls on a rock face criss-crossed by shimmering yellow bands. Inside is Mario Regli, 43 years old, his body contorted, his face distorted from the effort. Everything he produces: «Es isch en Seich!»