





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
Rates
Basic price - full adult price
From 4€
Free of charge
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Opening times
- Saturday 8 February 2025
- Saturday 15 February 2025
- Saturday 22 February 2025
- Monday 24 February 2025
- Wednesday 26 February 2025
- Thursday 27 February 2025
- Friday 28 February 2025
- Saturday 1 March 2025
- Monday 3 March 2025
- Wednesday 5 March 2025
- Thursday 6 March 2025
- Saturday 8 March 2025
- Saturday 22 March 2025
- Saturday 5 April 2025
- Saturday 12 April 2025
- Monday 21 April 2025
- From 23 April 2025 until 24 April 2025
- Monday 28 April 2025
- Tuesday 29 April 2025
- Thursday 1 May 2025
14:30 - 15:00
14:30 - 15:00
14:30 - 15:00
at 14:30
at 15:30
14:30 - 15:00
15:00 - 15:30
16:30 - 17:00
at 17:30
14:30 - 15:00
14:30 - 15:00
at 15:30
14:30 - 15:00
15:00 - 15:30
14:30 - 15:00
14:30 - 15:00
15:30 - 16:00
14:30 - 15:00
14:30 - 15:00
15:30 - 16:00
14:30 - 15:00
15:30 - 16:00
Wednesday
15:00 - 15:30
Thursday
15:00 - 15:30
14:30 - 15:00
15:30 - 16:00
14:30 - 15:00
14:30 - 15:00
15:30 - 16:00