A calm lake lies near the Oberalp Pass. This lake's water flows clear and fresh into the valley. The Tomasee (Lake Toma) is considered to be the source of the Rhine. And it is only here that the river that flows through four countries can still be crossed with a single step.
The vacation region around the Black Lake and in the Eastern Freiburg Pre-Alps (Voralpen) is well-known for its authenticity and its wild, romantic natural landscape, which includes the dark appearance of the Black Lake and the Brecca Abyss, an Alpine valley formed by glaciers.
The Kitzelpfad (tickle path) offers a thrill of a special kind at the mountain station of the Brunni chair lift. The barefoot path around the idyllic Härzli lake, situated at 1860 meters above sea level, is unique in these mountains.