• Educational area.
• Gift shop and café.
• Acoustic concert at the heart of the cave every month.

RailAway combined offer for individual passengers:

• 10% discount on admission.
• Offer valid from 18 March to 1 November 2023.

You benefit from the discount on the activity when you travel there and back on public transport, such as with a 1-day travelpass, a supersaver ticket, a regional travelcard or a GA Travelcard.

• Outward journey: to St. Léonard station, then 15 minutes on foot to the underground lake, according to the online timetable.
• Must be booked online in the “RailAway” category under lac-souterrain.comLink opens in new window.. Admission is not guaranteed without an online booking.
• Mandatory booking, ideally 2 weeks before the date of travel: lac-souterrain.comLink opens in new window..
• Minimum of ten participants.
• Every day, from 19 March to 1 November.

You can obtain the combined ticket (discounted leisure activity and public transport ticket):

• Online.
• From SBB Contact Center on 0848 44 66 88 (CHF 0.08/min.).
• At the SBB ticket counter.

If you already hold a ticket (e.g. GA Travelcard, 1-day travelpass, etc.), you can also obtain the discounted leisure activity separately via the abovementioned channels. You will be informed of any exceptions when buying online during the purchase process.