This walk leads you along beautiful roads and paths through the southern foothills of the gigantic forest of Anlier. From the 16th century, the forges of the region produced products that were sold throughout Europe. The walk starts at the Place Pierre Nothomb and leads past the étang du Châtelet to the beautiful forest of Anlier. After a few kilometers you will arrive at the Château du Pont d'Oye from the 17th century. The road then leads to the ruins of the old Forge du Prince. A sign explains the manufacture and the main advantages of Walloon iron products from the 16th to the 18th century. From a height you can view the ruins of the whole complex.