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Visit of the Caves

1h fromLyon, Genève or Annecy -  Ain - Mountains of Jura

Download the audioguide application Grottes du Cerdon on your smartphone 

Discover a strange and exciting underground route shaped during the great ice ages. 

A 1H or 1H30 walk from the burial point of an old river until its resurgence in the middle of a cliff on a belvedere overlooking the Cerdon’s valley and its vineyards.

Choose your visit:

Guided tour at fixed times, independent visit or visit in the form of a tale for the youngest.

Plan des Grottes
Plan des Grottes

Self-guided tour

Maximum 8 people / group - Download the Grottes du Cerdon app (French, English, Dutch, Spanish)


French guided tour

1h from Lyon, Genève or Annecy - In Jura's mountains


Visit for 4 - 6 years old

Specially dedicated to 4-6 year olds and their families.

Questions sur les Grottes
  • What is the temperature in the cave ?
    • The upper gallery is at 13/14 °C and then drops to around 10 °C at the end of the large hall. For the second part, the temperature drops to 4 °C for 5 minutes. On the belvedere, you will find the outside temperature.

    • It is the temperature differences and the elevation that make this second part of the visit more physical.

  • Are dogs allowed in the caves ?

    • Yes, but they must be carried or placed in a basket. Only small dogs

  • Why a 2-part visit?

      • The main part corresponds to the concreted gallery and the path constitutes a loop with departure and arrival at the reception of the site. For people ready for an additional ascent effort, it is possible, at the end of the upper gallery overlooking the large room, to continue independently to the belvedere. This overlooks the Cerdon’s valley and its vineyards.
      • This second part with a higher elevation and therefore on the initiative of each and own rhythm.
    Prévoir un vêtement chaud pour la visite des grottes (14°c à 4°c pendant 5/10 mn) et des chaussures confortables (retour par un sentier en sous bois)
    Les pluies n'ont pas d'incidence sur les animations qui peuvent se faire sous abris
    Les Grottes du Cerdon ne sont pas inondables