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Visit groups

GROUP OF ADULTS (for each 20 visitors)
Group of adults 7,70 €

Beyond  100 people, tapering rate

Short visit 6 €
A more accessible circuit – only in the morning – is suggested. This route of about 216 steps will allow you to discover three rooms including the amazing waterbassins , unique in Europe, and its light and sound show.  

Conception et réalisation [GFCOM 2013]