The cavern is home to the tallest known stalagmite in the world, which reaches a height of 30 meters.
The cave was discovered by accident when Louis Armand, a local blacksmith, noticed a small opening in the ground while tending to his sheep.
The temperature inside the cave remains a constant 11-12 degrees Celsius year-round.
The central hall, often called the 'Virgin Forest,' contains one of the densest collections of stalagmites found in any cave worldwide.
The cave is accessed via a funicular that transports visitors through a 208-meter-long tunnel down to the main cavern floor.
Aven Armand is a natural limestone cavern located in the Lozère department of France, renowned for its massive subterranean forest of over 400 stalagmites. Discovered in 1897 by Louis Armand and Édouard-Alfred Martel, the cave features a central chamber that descends 100 meters underground via a funicular railway. The largest formation, known as the Grande Stalagmite, stands 30 meters tall, making it one of the largest stalagmites in the world. The site is part of the Cévennes National Park, situated on the Causse Méjean plateau. Visitors enter through a modern structure before descending into the humid, temperature-controlled environment of the cave. The interior is illuminated to showcase the intricate crystalline structures and mineral deposits. It remains an active geological site managed for tourism and scientific observation.
The viewing platform at the base of the funicular provides the most comprehensive panoramic view of the entire 'Virgin Forest' stalagmite field.
Bring a warm jacket or sweater regardless of outside weather conditions.
Wear comfortable, non-slip footwear suitable for walking on damp cave paths.
Arrive early in the day during peak summer months to avoid large tour groups.
Attempting to visit during the winter months, as the site typically closes for the season.
The site is typically closed from November through March; confirm specific seasonal opening dates before travel.
Do not touch the rock formations, as oils from human skin can disrupt their mineral growth; photography is permitted but strictly without flash.
