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Grotto · Hastière, Namur
Grottes du Pont d'Arcole
Limestone caves discovered in 1924 in Hastière, carved by a tributary of the Féron river, with stalactites and fine concretions, visited on a guided route.
Illustrative images. The pictures in this guide are illustrations based on the real place, not photographs, and may differ from it.
Discover
About Grottes du Pont d'Arcole
The Pont d'Arcole caves are in Hastière, near the bridge over the Féron stream, a tributary of the Meuse. They were discovered in 1924 and later opened to visitors. They formed over millions of years by water seeping into the limestone.
What stands out most are the fine concretions—lace-like stone formations, delicate stalactites and stalagmites. The galleries have about 858 meters of passage and 41 meters of elevation difference.
The visit is guided and takes about an hour, along walkways and stairs. The temperature inside the grotto is cool year-round, so bring a jacket even in summer.
The caves usually open in season with specific hours; check ahead.
Before you go
Practical information
Cidade Turismo reviews its information regularly, but something may have changed. Check with the place before planning your trip.
How much time to set aside
About a 1-hour guided visit.
Best time
On hot or rainy days, when the underground tour is a good alternative. Check the seasonal opening hours.
How to get there
The entrance is on the Inzemont road, near the bridge over the Féron, in Hastière, a few minutes by car from the center.
Tip
Bring a jacket and footwear with good grip: the grotto is cool and damp.
Get your questions answered
Frequently asked questions about Grottes du Pont d'Arcole
When were the caves discovered?
In 1924.
Is the visit guided?
Yes. It lasts about an hour, along walkways and stairs.
Is it cold inside the grotto?
The temperature is cool year-round. Bring a jacket.