Fribourg Pre-Alps Trail: Plaffeien – Schwarzsee
Explore regional route 78, the "Fribourg Pre-Alps Trail". Split into five stages, the route 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.
This second stage of the Pre-Alps Trail is shorter and takes you right into the heart of the mountains.