Fribourg Pre-Alps Trail: Schwarzsee-Jaun
Explore regional route 78, the “Fribourg Pre-Alps Trail”. Split into five stages, the “Fribourg Pre-Alps Trail” takes you from the town of Fribourg to Schwarzsee, then through La Gruyère, below the Gastlosen mountain chain to the Pays-d'Enhaut, arriving at the Château d'Oex, the Eldorado of hot-air ballooning.
The third stage of the trail is the first in mountainous terrain. It passes over a pass on the edge of the Röstigraben.