Built in 1442, this bisse connects the villages of Ayent and Grimisuat.

Please note: this bisse can also follow on from the Bisse du Ro which leaves Montana or alternatively form a loop with the Bisse de Sion from Anzère.

This is a particularly spectacular bisse which follows, at the outset, an impressive trail perched in the middle of a rock wall. Afterwards, you will discover a reconstruction of the building of the bisse. In the middle of a tunnel which encircles this historical reconstruction, you can reach a viewing platform and observe the wooden canals hanging from a vertical facade.

Total length : 18 km.

Altitude : Between 1800 and 1300 metres.

Route time : 3 to 4 hours (without the return trip).

Location : To the right of the Rhône, between the Zeuzier Dam and the Mayens d’Arbaz.

Difficulty : A spectacular walk, but not recommended for those suffering from dizziness or a fear of heights.

Ordinance Survey map 1 : 50'000  no. 273T Montana.

Best period : June to October.

This bisse contains water from early June to 30 September.

Departure

To follow this bisse, begin by using public transport to reach the barrage du Rawyl (Zeuzier) from Sion bus station. From the dam, follow the forest track that starts under the wall of the dam just after the restaurant and descends a steep slope to the start of the bisse. When you reach a clearing of chalets, the road stops and a path continues north-west across the rubble towards a rocky embankment.

Itinerary

The beginning of this path is quite spectacular and absolutely not recommended to those suffering from dizziness or a fear of heights. You should also wear good walking boots as there are some rough and exposed areas where it is easy to lose one’s footing! The bisse ends at «Etang Long» (Long Pond) in the Mayens d'Arbaz. From there, catch a bus back to Sion. Strong walkers can also begin at Plans Mayens above Crans (which can also be reached by public transport) and start with the Bisse du Ro.

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Interactive Map

Public Transport Timetable

We advise following this bisse going from Zeuzier to Arbaz. At the end of the walk there is a restaurant du Lac from which you can admire a panorama of the Alps from a magnificent terrace. The restaurant is 50 metres below the end point of the bisse.

Outside the summer season, there is no public transport for the Zeuzier dam.