The 'hundred thousand soldiers' formation is a rare cluster of over 100,000 tiny, pencil-thin stalactites covering the ground of a specific cavern.
The cave serves as an important scientific site for hydrogeological research in the Cévennes region.
The name 'Trabuc' is derived from the 'trabucaire,' a type of blunderbuss weapon associated with local 19th-century highwaymen who allegedly used the cave as a hideout.
The cave was rediscovered and opened to the public in the mid-20th century after being blocked off for centuries.
The subterranean water system is part of a complex karst network that feeds the nearby Gardon river.
The Grotte de Trabuc is located in the Gard department of France and is noted for a distinctive glass walkway suspended above a vast collection of thousands of tiny, mineral-rich stalactites. The cave system is carved into the limestone of the Cévennes National Park. It features a unique geological phenomenon known as the 'hundred thousand soldiers,' a cluster of 100,000 small calcite formations covering a large underground space. The site has been modified for visitor access with structured pathways that allow for viewing the subterranean environment without damaging the delicate formations. The interior maintains a stable temperature year-round due to its depth and insulation by the mountain rock. It remains an active geological site with ongoing water infiltration contributing to the growth of speleothems.
The glass walkway balcony, which offers an unobstructed vertical perspective over the floor of tiny formations.
Bring a warm outer layer, as the cave temperature remains constant regardless of outside heat.
Wear sturdy, non-slip footwear to navigate the damp and sometimes uneven subterranean paths.
Book tickets in advance online to secure a slot, as group sizes are strictly limited for conservation purposes.
Attempting to photograph with a flash, which is prohibited to protect the light-sensitive cave ecosystem and rock formations.
Closed annually during the winter months from November through mid-February.
Do not touch the stalactites or stalagmites, as natural oils from skin prevent further crystal growth.
