Lac Souterrain de St-Léonard

Lac Souterrain de St-Léonard is rated 3 out of 5 in the category recreational facilities and services. Read and write reviews about Lac Souterrain de St-Léonard. In the heart of the Valais, between Sion and Sierre, discover the underground lake of St Léonard, the biggest natural underground lake in Europe which you can visit by boat. During a 30 minutes boat trip on the cristal clear water, you will enjoy the peace of this amazing place while your guide gives you all explanations about the underground lake. Various types of stone glitter at a height of ten meters, their shapes reflected on the 6,000 square meter surface of the lake. Visiting the subterranean lake of St. Léonard is a unique adventure. The 300 meter long and about 20 meter wide watery underworld is considered to be a place of special power. It has been accessible to tourists since 1949. Jean-Jacques Pittard is said to have been the first person to scientifically explore the cave. Each year about 80'000 visitors discover this unique attraction.