







In Fromelennes, the Nichet cave is an invitation for an imaginary voyage in the heart of Earth. Over a depth of 30 metres and formed in Givet Limestone, this natural site inspired the popular mythology. During your visit, you will discover the depths of Earth and will meet maybe small inhabitants known under the name of "Nutons". On three levels, you will also discover many small places with the famous stalagmites and stalactites (The "moonlight room", the "Lion gallery", the "oblique rock", or the "big waterfall") and surprising light and sound effects (Visit in 3 languages) which add to the explanations given by a guide.
Exploited since 1895, the Nichet cave opens to the public in 1987. Several caverns are endowed with abundant concretions (the famous stalagmites and stalactites). the Nichet cave is incontestably the most charming geological curiosity in the Ardennes.
The NUTONS :
The nichet cave has inspired the popular mythology : Supernatural creatures named "Nutons" living in the cave and the subterranean galleries. Legendary creatures creating links with the malefic spirit of the forest. The Nutons are nocturnal creatures, very small and old with supernatural powers. Intelligent and hard workers (smith, dressmaker or boilermaker), they help you out.
Guided tours with sound system in French, English and Dutch.
Fitness trail in the forest.
Snacks and bar on site.
Breathtaking views of Fromelennes and Givet.
Group size limited to 25 (including guide). Reservations are strongly recommended for groups.
Opening times :
APRIL - MAY: Weekends, public holidays and school vacations from 2pm to 6pm.
JUNE - JULY - AUGUST: Daily, weekdays from 10am to 6pm and weekends from 10am to 7pm.
SEPTEMBER: Daily from 2pm to 6pm.
OCTOBER: Weekends from 2pm to 6pm.
Visite guidée
Aire de jeux
Aire de pique-nique
Bar
Boutiques
Parking
Parking autocar
Sentiers balisés
Entrée individuelle par personne adulte: 6 € (2026)
Groupe scolaire: 3 € (2026)
Groupe enfant (à partir de 12 pers.)(prix par pers.): 3 € (2026)
Groupe adulte (à partir de 12 pers.)(prix par pers.): 4 € (2026)
Entrée individuelle par personne (enfant 7 à 16 ans): 3.5 € (2026)
Chèques, Chèques bancaires et postaux, Chèques Vacances, Espèces
The Ardenne holds treasures into the depths of the earth. The Nichet cave is one of these treasures. Naturally carved into the limestone massif of the Ardenne, it reveals mysterious forms to the visitor. The Nichet cave is also the refuge of the nutons, these little creatures with powers and that we can meet sometimes at the mercy of a walk in the forest of Ardenne.