Lac Souterrain de Saint-Léonard
Saint-Léonard, Valais91 min from Nyon
Rainy-day pickOriginal find
Lac Souterrain de Saint-Léonard is the largest underground lake in Europe, offering a unique environment for families to swim and play in its cool waters. Visitors can relax by the lake or pool while exploring the fascinating underground setting.
Why special: The underground setting does most of the magic: cooler air, rock formations and a cave atmosphere make the visit feel very different from a normal walk or museum.
At a glance
Recommended age
3-12
Time on site
Half day
Setting
Indoor · Rain-proof
Drive
91 min from Nyon
Know before you go
Season
Best in mild weather
Strollers
Stroller-friendly in parts
Parking
Check official site
Bring
Bring water and snacks
Tags
IndoorWater and swimmingOriginalOutdoorEducational