Lac Souterrain de Saint-Léonard

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21 Rue Du Lac
1958
Guided boat trip on the underground Lake. Explored for the first time in 1943, discover one of the most fascinating underground site, 10 minutes from Sion. The subterranean lake of St-Leonard is located in Switzerland, along the Rhone valley, between Sion and Sierre in the heart of the Swiss Alps. With a length of around 300 meters this is the largest natural underground lake in Europe which can be explored by boat. During a 30 minute boat trip on the crystal clear water, you will enjoy the peace of this amazing place while your guide explains all sorts of fascinating details about the origin and the history of the underground lake. We look forward to your next visit.

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4.0383 reviews
Photo of NB16
Beautiful underground cave!
9/7/2024

My family and myself visited this afternoon and had a fabulous time. The captain was informative and...

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