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Lac Souterrain de St-Leonard

St-Leonard, Switzerland
About Lac Souterrain de St-Leonard
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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Lac Souterrain de St-Leonard
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diannakiru wrote a review Oct 2021
Basel, Switzerland780 contributions47 helpful votes
Very nice boat trip, very interesting for children . And the temperature inside the cave was about 16 degrees - not that bad, considering we had a two year old and a two month old with us. The trip was long anluve - about 30 min and very entertaining however don’t expect a real cave with bats and stalactites. It’s really an underground lake with beautiful acoustic and nice lights. Perfect for a lazy afternoon:)
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Date of experience: September 2021
seasonedvisitor wrote a review Sep 2021
Brisbane, Australia739 contributions264 helpful votes
It is a nice experience to be in a small boat in an underground lake. It is a 30 minutes visit. If you are in the are it value the worst to go.
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Date of experience: September 2021
David T wrote a review Jul 2021
Rheinfelden, Switzerland351 contributions66 helpful votes
I am happy I went to see this, it was nice, it was a good thing to do on a very warm day, but in the end it is a hole in the ground with some water in it. There is not much to say on the tour so the tour guides have to fill in the time with dumb jokes.
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Date of experience: July 2021
FamilyPat wrote a review Oct 2020
138 contributions63 helpful votes
The cave is actually pretty small, but interesting for the kids to see and beautifully clear water. Well organized (although we went at what was probably a non-peak time). Souvenir shop has lots of
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Date of experience: September 2020
3 Helpful votes
Waltons2010 wrote a review Aug 2020
Zurich, Switzerland294 contributions152 helpful votes
The boat trip and the commentary by the student were interesting. For the price you pay the trip is quite short. It was also a shame that the boat did not turn to allow all people to take good fotos. Corona measures are in place with face masks and hand sanitizer. For people with a mobility issue - please take into account that before getting to the sight you have to climb a set of stairs or walk up a steep hill. Inside the sight there are again a fairly large number of stairs to climb down and back up again - see their webpage.
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Date of experience: August 2020
2 Helpful votes