Grotte La Merveilleuse, Dinant
Grotte La Merveilleuse: the white cave on the edge of Dinant
Grotte La Merveilleuse is a show cave on the edge of Dinant, found in 1904 and known for its white stalactites. A guided visit of about fifty minutes.
Grotte La Merveilleuse is a show cave on the edge of Dinant, on the road that climbs from the Meuse towards Philippeville. It was found in 1904, and it is known for its white stalactites and stalagmites. A guide takes you through in about fifty minutes.
How it was found
The cave was discovered in 1904, during building work on the slope above the Meuse. A Dutch nature journal from that time ties it to the construction of the local railway line between Dinant and Florennes. Workers cutting into the rock found an opening, and behind it a cave.
Because it lay right next to a road, it was easy to open to visitors. Over time it carried a few names, including Grotte de Dinant, before it became La Merveilleuse: the marvellous one.
Why the white matters
What sets La Merveilleuse apart is the colour. Many of its stalactites and stalagmites are pure white and very fine. The regional tourist board, Visit Wallonia, calls it one of the most beautiful caves in Belgium. Some formations look like frozen waterfalls of stone.
Our second cave near Dinant
On our day around Dinant, the default cave is Grotte de Lorette at Rochefort. La Merveilleuse is the other one. Its big advantage is the distance: it is right in Dinant, so it saves about forty minutes of driving each way. That leaves more of the day for the town, the citadel and the castles.
The trade-off is lunch. At Lorette there is a spot on site where I set up lunch while you are underground. With La Merveilleuse, lunch moves to Dinant.
On a June day in 2026 it was the highlight for one couple. For most of the visit they had their part of the cave to themselves.
Getting there
The entrance is at Route de Philippeville 142, on the edge of Dinant. There is no easy stopping at the door itself, so I drop guests at the entrance and park a little further on. The visit is guided, with a departure every hour on the hour, in French, Dutch and English.
When it is not worth it
If you do not like enclosed spaces, skip it. You spend about fifty minutes underground. And if you have already seen a large cave such as Han-sur-Lesse, this one is smaller. Its point is the white formations and the short distance, not the size.
Check the hours before you go. The cave does not publish its opening times online, so call first.
Days we ran here
- Carmit’s day for one around Dinant, May 2025. The cave in the morning, then up to the citadel.
- Stephanie and Joe’s Dinant day, June 2026. A cave almost to themselves, and the highlight of their day.
If you want a day that includes it, tell us your dates on the private page.
Rather not plan it yourself?
La Merveilleuse is one of the two caves we use on our day around Dinant and the Meuse valley. Pickup at your door in Brussels, Ghent, Antwerp, Bruges or anywhere else in Belgium. Lunch and drinks throughout, one party per day. Tell us your dates and we build the day around you. Days run year-round on request, and you get a personal reply within 24 hours.
Plan Your Day