Although rather small, St-Leonard Lake is the largest underground lake in Europe. It was discovered in 1943 by two Swiss speleologists. Water level then was high and it wasn’t possible to show it to t

So glad we visited! Very well organised and the price is fair. The lake and caves are absolutely stunning, the explanation from the guide was interesting and it’s lit in a beautiful way - I’m grateful

My family and myself visited this afternoon and had a fabulous time. The captain was informative and the cave itself was fascinating. A peaceful, calm boat trip enjoyed by all.