The City of Saint-Quentin can be proud of an underground heritage of exceptional forms and uses different times. Discover the former dungeons of Le Roy and the underground galleries of Rue Saint-André, in the company of the members of the association Quintinus, passionate volunteers, who make you relive this underground adventure with a thousand-year-old history and unsuspected mysteries.
departure every 30 minutes, last departures at 11:30 and 17:30