The Swissalpine K43 is a stunning alpine marathon featuring lovely mountain trails around Flims. Highly recommended.
👉 https://swissalpine.ch/en/trails/k43/
Swissalpine K43
Jul 19, 2025
Trail Running
Trail statistics
- Distance
- 41.53km
- Elevation gain
- 2001m
- Elevation loss
- 1996m
- Max elevation
- 2470m
- Time
- 6 hours, 33 minutes