Plan your visit

As you walk alongside two underground rivers, discover straw stalactites – calcite “drinking straws” of which there are thousands in the cavity: a spectacle unique in Europe! During your tour, you will come across olms, astonishing cavern-dwelling animals... And the gigantic Cathedral Chamber will host you for a vividly colourful and emotion-packed sound & light show. Just follow your guide!

Practical info


Information about groups


Pour en savoir un peu plus