Point of interest 

Suone Wyssa

The Wyssa is the highest, most beautiful but also most dangerous bisse of the 10 irrigation channels in the Gredetsch valley. Today it serves exclusively as a spectacular Suonen trail because the water flows through a tunnel toward Mund. The course is beautiful, dizzying passages alternate with 15 low and small tunnels where you have to walk on your knees on a wooden board which is placed in the bisse. A flashlight is not necessary since the tunnels are all rather short. The construction of 7 km long Wyssa-Suone is dated before 1462. It is difficult to imagine the tremendous work that was necessary for its construction and maintenance!