Discovery

Tour duration : 1 hour (introduction + in and out of the tunnel)
Access to the cave : shuttle bus (30 min drive) / pedestrian (2h hike)
Public : all public - ♿
Minimum age : 5 years old
Guide : touristic
Discover the biggest underground chamber open to all public worldwide. An artificial horizontal tunnel, with a 660 m (0.41 mile) length, allows you to reach by foot this huge cavern, which is then being revealed by a gradual lighting. The tour is guided and commented along a secure path.
The guiding thread is an extraordinary human adventure : the exploration of a deep pit in the heart of La Pierre Saint Martin limestone massif.
This tour is accessible to people with reduced mobility. Concerned people are welcome to call us before booking online, so that we can best plan their tour and access to the cave.
Provided equipment : helmet and hygiene cap
What to bring : warm clothing (average temperature is 5°C with strong air current in the tunnel), hiking shoes
Admission prices
All indicated prices include VAT and transport with the shuttle bus from the reception located in the village of Saint-Engrâce (Calla area/ alt : 660 m) to the entrance of the cave (alt : 1050m). Another option is to go hiking to the entrance of the cave (price lowered by 5€ / person).
Normal admission price
Child ** : 12€ - Adult : 19€
Reduced admission price *
Child ** : 11€ - Adult : 15€
* Off-peak period (from Monday to Friday, excluding school breaks and public holidays. See booking calendar), family (minimum 2 adults + 2 children), group starting from 16 people (if only one payment is made), speleologists owning a federation licence (upon presentation of the licence).
** From 5 to 15 years old included ( please keep in mind minimum ages : Discovery from 5 years old, River from 7 years old, Exploration from 10 years old).