The Harderbos is young but already looks very mature. In 1968, the first poplars were planted here, a pioneering species that grows quickly. Meanwhile, it has become a diverse forest with trees of all kinds and ages mixed together. Fallen trees are allowed to remain, providing food and shelter for insects, mushrooms, birds, and many other animals. In the twilight, you may encounter roe deer, foxes, or even spot beavers (their presence betrayed by gnawed tree trunks along the water's edge). For the grazing of this area, the Red Geuze cattle breed and Konik horses are used.

Halfway through the forest, a sign points the way to Hans & Grietjes Pancake House and Playground. This location is completely decorated in the style of the fairy tale of the same name. Be sure to take a look!