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Putafontana/Marais de Grône VS

Near the subterranean lake of St-Léonard, on the left side of the Rhône River, a wetland has been created due to the altered riverbed. The low-moor bog attracts a large number of migratory birds, especially in April and May.

Picture: Tufted Duck more

Chillon

Boat ride on a subterranean lake

Europe's largest subterranean lake that can be sailed upon lies between Sion and Sierre. The water grotto is easily accessible and there is a boat... more

Boat ride on a subterranean lake

Putafontana/Marais de Grône VS

Near the subterranean lake of St-Léonard, on the left side of the Rhône River, a wetland has been created due to the altered riverbed. The low-moor bog attracts a large number of migratory birds, especially in April and May.

Picture: Tufted Duck

Boat ride on a subterranean lake

Europe's largest subterranean lake that can be sailed upon lies between Sion and Sierre. The water grotto is easily accessible and there is a boat tour for viewing it. The guides on the boat tell visitors about the history of the cave and its geology.

Europe's largest subterranean lake that can be sailed upon lies between Sion and Sierre. The water grotto is easily accessible and there is a boat tour for viewing it. The guides on the boat tell visitors about the history of the cave and its geology.