Vertical rock faces and delightful terraces, framed by snow mountains: the Lauterbrunnen valley fascinates mountain and extreme sportsmen- as well as gourmets. Glaciers have shaped this scenery in thousands of years.It's cold. Even if the sun is shining. Ice covers the mountainous landscape and the V-shaped notches that streams have previously dug into the rock. Even where today the Lauterbrunnen Valley with the sun terraces of Wengen and Mürren is situated. Only the highest peaks rise out of the ice. We are in the Bernese Oberland, 25,000 years ago.