Booking for groups

Groups of more than 10 people must book their visit by filling out the form below.
Group rate: €4 per person, applicable only for groups of 10 or more paying participants (excluding those eligible for free admission).

Due to the high number of groups wishing to visit the site, reservations fill up very quickly. We therefore strongly encourage you to submit your request as early as possible; however, availability cannot be guaranteed for every request.

Before booking, please read the information about the site visit.

IMPORTANT : 

When entering your contact information, please enter the NAME of your structure in the "Address" field. The confirmation of the reservation will be sent to the email address entered.