Lac souterrain SA

Tourist Information in St-Léonard

Contains automatically translated texts.

The "St-Léonard Underground Lake" is the largest natural underground lake and navigable

ABOUT LAC SOUTERRAIN SA

The "Lac Souterrain de St-Léonard" is located in Switzerland, between Sion and Sierre, in the heart of the Valais Alps. A privileged witness to the formation of the Alps, this navigable underground lake is nestled in the hillside between 30 and 70 meters below the vineyards. With a length of over 300 meters, it is the largest natural and navigable underground lake in Europe.

Aboard rowboats that can accommodate up to 40 people, multilingual guides take you on a journey of discovery through this fascinating world in complete silence. During a guided tour lasting over 30 minutes, you will glide across the crystal-clear waters of the lake and learn to unravel its mysteries.

We look forward to your next visit.

PRODUCTS, SERVICES

We offer guided boat tours lasting just over half an hour, with commentary in French, German, and English.
Photography is permitted, but swimming and diving are prohibited.
Kiosk - Souvenirs - Refreshments - Snacks
Superb terrace
Pets allowed