Neptune Caves - Wikipedia
- ️Mon Feb 20 2017
From Wikipedia, the free encyclopedia

The Neptune Caves (French: Grottes de Neptune), also known as the Grottes de l'Adugeoir are a series of natural caves located in Wallonia near Petigny in the municipality of Couvin, Belgium. They are located on the Eau Noire river, a tributary of the Meuse.
Many of the chambers are accessible to the public via a guided tour, partially via boat on the underground river.[1][2]
- ^ "Grottes de Neptune, dites Grottes de l'Adugeoir". belgique-tourisme.be. Retrieved 2017-02-20.
- ^ "Caves of Neptune (or of Adujoir)". Michelin. Retrieved 2017-02-20.