Grottes de Nichet

Useful Information

Location: Fromelennes, Ardennes
Open: APR to MAY daily 14-18.
JUN-AUG daily 10-12, 13:30-19.
SEP daily 14-18.
Fee: Adults EUR 5, Children (10-16) EUR 2.50, Children (6-9) EUR 1.50, Children (0-5) free.
Classification: SpeleologyKarst cave
Light: electric.
Dimension: VR=53m, T=9°C
Guided tours: D=60min, VR=30m, V=4,800/a[2008]
Address: Grottes de Nichet, Rue des Ecoles, 08600 Fromelennes, Tel: +33-324-420014, Fax: +33-324-423756. E-mail: contact
As far as we know this information was accurate when it was published (see years in brackets), but may have changed since then.
Please check rates and details directly with the companies in question if you need more recent info.


16th cty cave first mentioned.
1895 opened to the public.
1950 Grotte du Trasson discovered.
1953 Grotte du Trasson explored.
1950s cave closed.
11-APR-1987 cave renovated and reopened, electric light.


The Grottes de Nichet (Caves of Nichet) actually does not deserve the plural, there is only one cave. This is a very old cave, opened to the public in 1895, according to Meyrac: Géographie illustrée des Ardennes. At this time each chamber was called a grotte, and a cave with more than one chamber was called Grottes.

This cave is located in the Givetian limestones of the Ardennes, actually from the geologic view it is a Belgian cave. However, there is a corridor of France protruding from the region Champagne-Ardenne, surrounded by Belgium, with this cave at the tip.

The cave has three levels, which follow the highly inclinated banks of the limestone. The upper two levels are developed for the public. The cave requires climbing 114 steps, as the tour descends some 30m. The salle du Squelette (chamber of the skeleton) was named after a thief who planned to use the cave as a hideout in 1772. He only had a candle for light, and after it went out, he could not find the exit any more. As a result he died in the cave and his skeleton lies here. So goes the legend, but the skeleton is actually a dripstone formation. The highlight of the tour is the salle de la Roche, where a sound system recites a part of Jules Verne's Journey to the Center of the Earth.

Nearby is a second cave, the Grotte du Trasson or Trou du Trasson. It was discovered in 1950 by the dog of the guide Monsieur Barbier. So it was named Trasson, because the dog was a terrier named Trasson. At first the entrance was too narrow for a man, only the dog could enter, but the entrance was widened in 1953 and the cave explored. The cave may be visited by speleologists.