The Lauterbrunnen valley is a typical U-shaped glacial valley with steep slopes, which bend above and end in high-lying flatter parts, the so-called trough shoulders. The Lauterbrunnen valley was formed by the ice age glaciers. The villages Wengen, Mürren, Gimmelwald are situated on the flat terraces of the Lauterbrunnen valley, meanwhile Lauterbrunnen , Stechelberg and Isenfluh on the valley floor. Today this glacial valley is used for new types of sport: The valley is well known as paradise for base jumpers. For this activity, the jumpers plump down from a platform at the top of the rock wall, and land finally with a parachute on the valley bottom. The jumps may trigger strong adrenaline rushes, however they are considered as highly risky - frequently leading to serious accidents. One of the jumping-off platforms is located beneath the viewpoint Staldenfluh.