© Cévennes Gorges du Tarn
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© Cévennes Gorges du Tarn
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Published on 02-08-2026
The history of this legendary place began in September 1897. During an exploration on the Causse Méjean, blacksmith Louis Armand discovered the entrance to this chasm, which would later bear his name. A few days later, he descended into it for the very first time alongside the famous speleologist Édouard-Alfred Martel. Together, they revealed to the world a monumental cavity, a unique underground chamber with dizzying dimensions large enough to swallow Notre-Dame de Paris.
To discover this underground masterpiece, the tour has been designed to suit every type of traveler:
The main access is effortless thanks to a modern funicular railway that takes you down directly into the heart of the rock in just a few minutes. This is the ideal option for families with children or seniors, offering absolute comfort to reach the start of the guided walking tour.
Once inside the great chamber, the magic happens through a grandiose light display. During the tour titled "Jules Verne," a sound and light show revisits the fantastic world of the author of Journey to the Center of the Earth. The spotlights sublime the stalagmite forest and create an enchanting atmosphere. The guide accompanying the group shares captivating anecdotes about the geology and history of the place, making the visit both fun and educational.
For thrill-seekers, the site also offers a package called "Exploration." This sporty option allows you to relive the excitement of the 1897 pioneers. Equipped with a harness and supervised by professionals, you will abseil 75 metres down through the natural shaft. Suspended in mid-air above the stone forest, you will experience a spectacular and exclusive immersion before joining the classic tour of the cavity.
Nestled in the commune of Hures-La-Parade, the chasm is easily accessible by car from Millau or Mende. To plan your visit, here is what you need to remember:
To secure your entry, book via the official website. What's more, storing your e-tickets directly on your smartphone means you can skip the queue at the ticket office.
Here is an overview of the prices for the season:
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Classic Tour |
Exploration Tour (Ages 12+) |
VIP "All to Yourself" Tour |
Private Tour |
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Prices |
• Adult (+18 years old): €18.50 • Child (5-18 years old): €12.20 • Baby (-5 years old): Free • Adult Reduced Rate (partners, students, job seekers, disabled visitors, large family cards): €16.70 • Child Reduced Rate (partners, disabled visitors, large family cards): €11.00 |
• Natural shaft abseiling descent: €85.00 • Walking descent through the tunnel: €45.00 |
Available upon request |
Private guide and funicular: €100.00 + standard individual "Classic Tour" rate |
The underground world follows its own rules! To ensure chatting with your guide remains a pleasure and no one ends up chattering their teeth, follow our advice:
The chill factor: 100 metres underground, the temperature remains a constant 12°C. A warm jumper and non-slip trainers are the essential combo to comfortably walk along the cave's footpaths, even if it is a heatwave outside!
Once you have come back up from the cavity, don't leave the Causse Méjean too quickly! This limestone plateau, listed as a UNESCO World Heritage site, perfectly embodies the spirit of wild France. It is a timeless place where nature rules supreme.
To extend your experience after returning to the surface, here are the must-see spots to explore:
If your thirst for underground treasures is not yet quenched, the region hides other secrets. Just a few kilometres from Aven Armand, you can explore the Dargilan Cave, nicknamed the "Pink Cave". It makes an excellent addition to your trip, as it offers a completely different structure, featuring gigantic, colourful limestone draperies.
Finally, dive into the heart of the famous Tarn Gorges. Whether for a canoe descent, a refreshing swim, or a stopover in the medieval village of Sainte-Enimie, it is the perfect spot to beautifully round off your getaway in Lozere.
Hotel : Open from April 4 to October 31, 2026
Restaurant : Closed for the 2026 season
Pool : Open from June 3 to September 30, 2026