Flims Waldhaus–Trin-Mulin

Cauma Lake and «Il Spir» Observation Deck

Enjoy spectacular views of the Rhine Gorge from the “Il Spir” observation deck. The hike from Flims to Trin-Mulin takes you from one picturesque lake (Cauma Lake) to another (Cresta Lake).

The Postbus will drop you off at the Flims Caumasee station. From there, follow the hiking trail down to the picturesque Cauma Lake.

On the way to the “Il Spir” observation deck, Restaurant Conn beckons you to sit and relax for a while. A fascinating insight into the interesting geological formation of the Rhine Gorge awaits you at the “Il Spir” observation deck. The path continues down to the meadows of Pintrun and leads across a bridge over the Flem River. The final part of the route takes you over the plateau from Las Seaz to Trin-Mulin where you can catch a Postbus back to Chur or Flims. As an alternative on a warm summer day, you could also take a side trip to Cresta Lake for a refreshing swim.

Hiking time: approx. 3 hours
Level of difficulty: easy

Additional information

Buy ticket

Buy your ticket from the SBB Shop or SBB Mobile app. You can also buy a ticket from the driver, at all ticket terminals, PostBus sales offices and at the counter of your nearest railway station.

Additional ticketing apps and online shops can be found in our overview.

Timetable / travel information

You will find the entire Swiss public transport timetable online here.

Route open all year


For groups of 10 and more, seat reservations are necessary or online,

Timetable no. 90.081: Tel. +41 58 341 34 87

Timetable no. 90.411: Tel. +41 58 341 34 90

Bicycle transport

Not all services have a bicycle transport fixture in/on the vehicle. The transportation of bikes is restricted. There is no guarantee of transportation. During the summer months, there is increased capacity for bicycle transportation. It is not possible to make reservations for bikes.

Wheelchair accessibility

Limited wheelchair access to the postbus

Special comments:

Timetable no. 90.081
All services are wheelchair-accessible. For information call tel. see Contact.

Timetable no. 90.411
not all services are wheelchair-accessible. For information, please call +41 58 341 34 90

Contact details


PostBus Ltd
East sector
Gürtelstrasse 14
7001 Chur

Opening hours

Telephone contact

Mondays through Fridays: 8 a.m.–5 p.m.
Saturday: 8 a.m.–12 noon and 1.30 p.m.–5 p.m.
Sunday and official holidays closed