The underground lake of St-Léonard, discovery stop - Valais |
|
With its 300m in length, 20m in width and 10m in depth, this site is the biggest navigable underground lake in Europe. Multilingual guides will lead you on an exceptional and mysterious tour of the site for over 30 minutes of live commentary in French, German, Italian or English.
Open every day from Half-March to November. |
|
|
|
