What was the purpose of the countless underground passages dug beneath the city over the centuries? Descend to discover a rich past that combines history, legends and geology.
- 30-minute tour
- Registration and advance payment required at the Tourist Office, by telephone or on our website.
- Meeting point will be communicated upon reservation
- 30-minute tour
- Registration and advance payment required at the Tourist Office, by telephone or on our website.
- Meeting point will be communicated upon reservation