• Attractions
  • Woodland, nature reserve or natural area
  • Grottoes and caves
  • Museum or Interpretation Centre
  • Education to nature

Just 6 km from Mons, the Neolithic flint mines of Spiennes or SILEX'S, listed by UNESCO, are well worth a visit...

Dotted with thousands of mine shafts, the site extends over 100 acres: this is one of the oldest and largest centres for the extraction of flint in Europe.

There is proof of human life in the area from the Palaeolithic period. The flint mines themselves were dug during the Neolithic period, between 4200 and 2500 BC. A few have been fully excavated by archaeologists and can be visited.

SILEX'S

SILEX'S, the interpretive centre at the Neolithic flint mines of Spiennes, presents the many facets of this internationally renowned archaeological site.

Visitors can:

  • enjoy walks and bike rides in the nearby Natur 2000 area
  • visit the museum (complete  with fun activities for the little ones)
  • meet archaeologists and visit the excavation site during special weekends
  • descend into a real Neolithic flint mine, 9 metres underground.

Practical information

  • Only 5,500 persons are allowed down these Neolithic flint mines a year to preserve the site as is.
  • Please contact VisitMons to book your visit.

Visitors with specific needs

The Neolithic Flint Mines are part of the sites certified by the official label Access-i (meaning with facilities or/activities adapted to travellers with specific needs). You will find more details on the website to plan your visit.

COVID : We do our best to keep you informed. It's best, however, to check the latest news with the attraction you are visiting, or operator you have booked an activity with. The Covid Safe Certificate is mandatory, as is wearing masks for anyone over the age of 6. Planning to go for a walk in the Haute Fagnes, enjoy the magic of Christmas, maybe find a place for a well deserved break? Read our travel advice.
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.

Visites

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

Discount vouchers

Discount vouchers

Download
Brochures

Brochures

Download