From its construction to the daily life of the soldiers, not forgetting its Unesco World Heritage listing, this is the perfect way to discover Vauban's masterpiece, including a passage through a 127 m-long underground gallery known as COM 110.
No access for the mobility-impaired and visually impaired. Visits difficult for people who find walking and standing awkward.
La Citadelle reserves the right to prohibit access to the Gallery for safety reasons and/or due to adverse weather conditions.