About
Largest underground lake in a cave in Europe with calm, clear, blue waters. Open from spring to autumn.
Why go
- Absolutely stunning
- Absolutely fascinating how calm, clear and blue the waters were
- A truly unique experience beneath the Swiss Alps
Must try
- Boat ride through the cave
- Guided tour
Pro tips
- Book tickets beforehand to skip the queue
- Online reservation required
- Arrive 15 minutes before your booked time
- Train to st-léonard station, then a 10-minute walk
Good to know
- Swimming and diving are not permitted
Save places like this with mio
mio turns the TikTok and Instagram travel videos you save into a map of places to go. Share a video and mio pulls out every spot in it, tips included.
The tips on this page came from travel videos people saved to mio.
Rating
4.5 / 5 (698 reviews)