K43

The first few kilometers take you past the idyllic, turquoise-blue Lake Cauma, whose unique atmosphere enchants every visitor. From there, the trail leads you through the tranquil surroundings of a dense, idyllic forest, which accompanies you on gently ascending paths towards Naraus. Further up, you reach the Segnesboden, a real natural gem in the UNESCO Sardona World Heritage Site. Here you can admire the famous Tschingelhörner and Martinsloch – fascinating geological highlights that will leave you in awe. The route continues via Nagens to Crap Masegn, where you can enjoy the impressive surroundings. The trail finally takes you to Crap Sogn Gion before heading towards Falera. After a descent, you will be rewarded with breathtaking views of the surrounding area. The varied route of the K43 offers you spectacular highlights and a challenge that you won’t soon forget.

K43

Date

Saturday, July 19, 2025

Start and finish

09.30 am Flims | 22.00 pm in Flims

Time limit

12.5 hours

Trail

Prau la Selva - Lake Cauma - Foppa - Naraus - Segnes - Nagens - Crap Masegn - Crap sogn Gion - Falera - Laax - Prau la Selva

Trail length and altitude difference

42.7 km| +/- 1'765

Highlights of the trail

Crap Masegn, Vorabgletschers, Segnesboden, UNSECO Tectonic Arena Sardona, Tschingelhörner

K82

Flims

K43

Flims

K16

Flims

K14

Flims Prau la Selva

H16

Flims Prau la Selva

H14

Flims

Entry fee K43

1. phase (bis 31.03.25)CHF 80.-
2. phase (01.04.25 – 31.05.25)CHF 100.
3rd phase (01.05.25 – 18.07.25)CHF 130.-

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

Here you can find the topographical map of the K43.