Official classification of an attraction in Wallonia - 2 suns
  • Attractions
  • Woodland, nature reserve or natural area
  • Grottoes and caves
  • Guided tour and discovery

Discover the exceptional setting of one of the last Belgian slate quarries.

Work in this slate quarry stopped in 1947. During this 45 minutes visit, you will tell learn more about this industry, wander through its mysterious galleries, home only to bats these days, and see the beautiful aquifer there.

The final themed room presents the exploitation techniques used in the quarry via a documentary.

Make sure you wear warm clothes for your visit. The temperature in the galleries remains at 10 degrees throughout the whole year, humidity being over 80%.

Make the most of your stay in the region to visit other local sites. You can, for example, combine this visit with the Récréalle train, try kayaking, go mountain biking or hiking... Nature is all around.

Visit Ardois'Alle and discover the secret beauty of the Semois valley.






COVID-19 : Please keep in mind non essential travels are not supported by Belgian authorities. We do our best to keep our information up to date but it's always best to check with the site you wish to visit before heading there - by phone, email, social media or simply a look at their website - to see their latest opening hours and entry conditions. Some will prefer you to book your ticket in advance. Infos
This information is given for indication purposes only, best to check with the site you hope to visit before heading there - by phone, email, social media or simply by visiting their website.


Guide available/groups - FR - NL - Guide available/individuals - FR - NL

Discount vouchers

Discount vouchers