Go with the flow in Anzère

The Grand Bisse d’Ayent – for experienced hikers

See it on the new 100-franc note. Experience it first-hand!

Built in 1442, the Grand Bisse d’Ayent takes its water directly from the River Lienne, beneath the imposing wall of the Tseuzier dam. It serves as the traditional water supply for the meadows and vineyards of Ayent and Grimisuat and ends its journey in the Etang de Revouire. To reach your destination, you will start your hike on the wall of the Tseuzier dam, then descend to the Lienne Valley until you reach the intersection with the bisse. Here you will be able to admire remnants of the past and the staggering work of our ancestors.

Note: the bisse is a mountain path to a place called “La Forniri”. It is a spectacular route which is not recommended for those suffering from vertigo. Altitude: between 1,800 and 1,300 metres. Restaurants are available in Anzère.

Travel details

Duration 3 hours 30 min
Difficulty medium
Distance 18.0 Kilometres
Altitude difference 1 800 Metres
Arrival By post bus
Return travel By post bus

Grand Bisse de Ayent

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.


For groups of 10 people or more, a reservation is required by no later than 4 p.m. on the previous day. Tel. 0848 40 20 40

Bicycle transport

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

Bicycle transport remark
Booking is strongly recommended

Wheelchair accessibility

Wheelchair accessibility is not guaranteed in the Postbus

Wheelchair accessibility remark
Upon request at 0848 40 20 40

Contact details


PostBus Ltd
West sector
Avenue de la Gare 6
1401 Avenue de la Gare 6