Valais · Sierre · nature
St-Léonard Underground Lake
A guided boat crosses Europe's largest naturally navigable underground lake.
Why go
A guided boat crosses Europe's largest naturally navigable underground lake. The Sweezy field guide brings together the practical route, realistic visit time, seasonal conditions and public-transport approach so the stop is easy to add to a Swiss journey.
Choose St-Léonard Underground Lake for a distinctive landscape that reveals another side of Valais · Sierre.
What to see
- ↗ Cave boat ride
- ↗ Illuminated rock
- ↗ Underground geology
SWITZERLAND LOCATOR
Where you are going
Valais · Sierre
- Switzerland
- CH
- Coordinates
- 46.254° N · 7.425° E
See the landscape
Destination facts reviewed using official Switzerland Tourism information. Switzerland Tourism ↗Images: Boris Legradic Borsic (talk) (31 August 2009 (original upload date)) · CC BY-SA 3.0, Łukasz Drozdowski · CC BY 3.0, Łukasz Drozdowski · CC BY 3.0