K23

The K23 route is ideal for runners who want to experience unforgettable natural highlights over a shorter distance. Right at the start, you will find the idyllic Lake Cauma – a place whose crystal-clear water and relaxed atmosphere will put you in the perfect mood for your adventure.

From there, the route takes you along varied paths through dense forests into the unique Rhine Gorge. On your way—a true natural gem—you can enjoy the impressive scenery to the fullest and let the tranquility of the mountains work its magic on you.

The final stage takes you through the Flims forest via Conn to the finish line.

 

K23

Date

Saturday, July 18, 2026

Start and finish

10:30 a.m. Flims | 8:00 p.m. Flims

Time limit

9.5hrs

Trail

Prau la Selva - Lake Cauma - Rhine Gorge - Conn - Prau la Selva

Trail length and altitude difference

23.2 km | +/-923m

Highlights of the trail

Flimserwald, Rhine Gorge, Conn

K78

Flims Prau la Selva

K78Four

Flims Prau la Selva

K42

Flims

H23

Flims Prau la Selva

K23

Flims

H12

Flims Prau la Selva

K12

Flims Prau la Selva

Entry fee K23

Phase 1 (until December 31, 2025)CHF 80.- (U18 70.-)
Phase 2 (January 1, 2026 – March 31, 2026)CHF 100.- (U18 90.-)
Phase 3 (April 1, 2026 – July 17, 2026)CHF 120.- (U18 110.-)

The registration fee includes the following services:

  • Bib number
  • Starter mail
  • Starter bag
  • Swiss Runners Ticket
  • Running catering
  • Depot running luggage
  • Ambulance service
  • Timekeeping with passive transponder
  • Start and ranking list with split times (online download only)
  • Diploma (online download only)
  • Gift
  • SMS service
  • Organization fee & VAT

Trail map