Bisses are the historic irrigation channels of the Valais. A bisse is an open ditches delivering priceless water from mountain streams – often by daring routes – to arid pastures and fields, vineyards and orchards. Many bisses are still in use today and so are carefully maintained. Numerous trails accompany these historic watercourses, inviting visitors to varied hikes on historic trails.
Niwärch - Gorperi - Undra
The southern acclivity is exposed to exceptional amounts of sunshine. Agriculture was impossible in this district until the water channels were built. Under extremely difficult conditions, the water was diverted from the Baltschieder Valley through about 20 suones. The Niwärch (built in 1381) has its source at 1300 m, the Gorperi (1640) at 1220 m and the Undra (1377) at 1100 m.
Destination: Eggen (1'049m)
Distance: 14 km
Vertical metres: +480m, -480m
Hiking time: 4h30
Restaurants and pubs: Ausserberg, Eggen