The K23 route is ideal for runners who want to experience real natural highlights over a shorter distance. It combines adventure, exercise and impressive landscapes – perfect for anyone who wants to get a taste of the Swissalpine air.
Right at the start, the trail leads through the mystical Flims forest, a place full of tranquillity and fresh mountain air. The route continues into the spectacular Rhine Gorge, a true natural gem that will delight you with its imposing scenery and peaceful paths.
The route is varied over forest and mountain paths to Conn and back to the idyllic Lake Cauma, where you can enjoy the last few meters of your trail in a relaxed atmosphere.
Whether you are taking part for the first time or already have experience – the K23 route offers an unforgettable nature experience that inspires both mind and body.
Saturday, July 18, 2026
10:30 a.m. Flims | 8:00 p.m. Flims
9.5hrs
Prau la Selva - Lake Cauma - Rhine Gorge - Conn - Prau la Selva
23.2 km | +/-923m
Flimserwald, Rhine Gorge, Conn
| Phase 3 (April 1, 2026 – July 17, 2026) | CHF 120.- (U18 110.-) |