The Castles of the Domleschg


Fortresses and castles, villages and PostBus stops. The variety of hiking possibilities combined with PostBus rides in the Domleschg region seems like paradise to history buffs.

The fertile Domleschg is a 10 km-long valley extending from Rothenbrunnen to Sils. No other part of Switzerland can boast as many fortresses and castles within such a small area. They are all connected by PostBus, so that you can hike or ride the “Domleschg Castle Road” to your heart’s content. For example, take the PostBus from Thusis to Tomils. The hiking trail starts near Ortenstein Castle, the largest in the Domleschg Valley, and continues to Paspels (ruins of Alt Sins, Paspels Castle) and along Lake Canova to the ruins of Neu Sins, followed by Rietberg Castle, before you reach Fürstenau where the PostBus is waiting to drive you back to the starting point in Thusis.

Notice: The castles are privately owned (no personal viewings),or run as hotel / restaurant. Castle ruins are generally freely accessible, although sometimes with difficulty. Please note the additional information concerning fortresses and castles via the links.

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 people and more, reservations through Tel. +41 58 341 34 89

Late evening connections: Mandatory reservations

Bicycle transport

Bicycle transport fixtures available in/on the vehicle.
You can find more information at Biking and Postbus.

Special comments:
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:
not all services are wheelchair-accessible. For information, please call +41 58 341 34 89

Contact details


PostBus Ltd
East sector
7430 Thusis

Opening hours

Mondays through Fridays
8.00–12.00 h and 14.00–17.00 h