Description
Take a guided tour of Sainte-Agnès and discover the Fort de la ligne Maginot, an exceptional military heritage structure buried under 55 meters of rock in a submarine-like configuration.
The guided tour of the Maginot Line Fort in Sainte-Agnès takes you deep into the heart of a historic military structure built between 1932 and 1938, perched on a strategic rocky outcrop on the French-Italian border.
A veritable underground city carved into the rock, this fort was one of the last defensive bastions of the famous Maginot Line, featuring underground tunnels and chambers totaling more than 2,000 m² and state-of-the-art facilities for its time (electricity, heating, ventilation, and a hospital).
During the guided tour, you’ll discover how the fort could accommodate up to 350 men in complete self-sufficiency, with a kitchen, power plant, telephone and rail networks, as well as a powerful artillery system that played a defensive role during the battles of June 1940.
This immersive experience sheds light on the soldiers’ daily lives, military engineering, and the region’s history, while offering a vivid testament to the 20th century right beneath your feet.
Practical Information
We recommend that you arrive 5 to 10 minutes before the tour begins.
For your comfort, we suggest bringing a sweater or jacket, even in the summer, as it can get chilly inside the fort.
Accessibility for People with Limited Mobility: The tour is accessible to people with limited mobility. Please let us know in advance so we can open the main gate by calling 04 93 35 84 58.
Rates
Heritage Weekend.
Groups (Max capacity)
Groups (Max capacity)
- 1 Person (s) mini
- 20 Maximum number of people
Opening times
On 19 September 2026
- 10:15 at 11:45
- 14:15 at 15:45
- 16:00 at 17:30
On 20 September 2026
- 10:15 at 11:45
- 14:15 at 15:45
- 16:00 at 17:30
Location
Spoken languages
Spoken languages
Access
Access
- RDV in front of the Fort entrance

