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Underground Lake
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Saint-Léonard UNDERGROUND LAKE

The extraordinary Saint-Léonard underground lake is the largest in Europe and attracts over a 100,000 visitors each year.

Discovered by Jean-Jacques Pittard in 1943 and opened to the public in 1949 it is a truly enchanting experience. No visit to the region is complete without a tour of this natural wonder of international renown.

Multilingual guides take visitors on tours of the lake aboard barges that hold up to 50 people.

(Lac souterrain)
1958 St-Léonard
Tel : +41 0 27 203 22 66

Prices:
Adults
Teenagers
Children
Company,
Adults group
10.
5.
3.
9.

Car parks for cars and coaches 150 m away
Open every day from 19 March to 1 November from 9:00 a.m. to 5:00 p.m.
In June through September from 9:00 a.m. to 5:30 p.m.
Snack-Bar terrace at the very entrance to the grotto
Guided tours available in four languages: French - English - German - Italian
Duration of the tour: 30 minutes
Last guided tour: 5:30 p.m.