Dalemansbos

Dalemansbos is a 24-hectare forest in the municipality of Zemst, in the Flemish Brabant province of Belgium, tucked between the villages of Zemst, Zemst-Laar and Zemst-Bos. At first glance it looks like an ordinary patch of woodland, but its layout hides a history that goes back to its days as a landscaped castle park.

Where does this forest come from?

The land now covered by Dalemansbos was once a large, deliberately planted park belonging to the d'Anethan family. The old trees and the network of ponds you can walk past today are remnants of that design — this was never a random, untouched forest, but a landscape shaped over generations as ornamental grounds around a residence. In early 2015, the nature conservation organisation Natuurpunt bought the site from the d'Anethan family. Together with 24 hectares of adjoining meadows and orchards, Dalemansbos now forms a larger nature area known as Wormelaar-Dalemansbos, managed by Natuurpunt.

What can you see here?

The most distinctive feature of the landscape is a large, elongated pond with a small island and a slightly larger one in its middle. Several smaller ponds are scattered through the forest as well. This is also where two streams, the Kleempoelbeek and the Molenbeek, have their sources — which explains why the ground here stays so damp and rich in wetland habitats.

Walking the marked trails, visitors pass monumental old trees, more ponds, and a historic chapel set among the greenery. In spring the old park comes alive with woodland flowers, showing the former castle grounds at their most picturesque.

What wildlife lives here?

Dalemansbos is home to species that depend on specific, damp conditions — among them great burnet, a plant with a taste for wet meadows and forest edges, and the great crested newt, an amphibian tightly bound to clean, sheltered woodland ponds. The presence of both species points to the good ecological condition of the ponds and the vegetation surrounding them.

Can you bring a dog?

Yes, the area is open to visitors who stick to the marked walking trails. Dogs are welcome, but only on a leash — a firm requirement to avoid disturbing the vulnerable wildlife, including the newts and the waterfowl that rely on the ponds.

Frequently asked questions

How big is Dalemansbos? The forest itself covers roughly 24 hectares, and together with the neighbouring Wormelaar meadows and orchards it forms a larger nature area managed by Natuurpunt.

Is this a natural area or a man-made one? Historically it was a landscaped park attached to the d'Anethan family residence, so the layout of old trees and ponds still bears the marks of that original garden design, even though it now functions as a protected nature reserve.

Who manages the site? Since 2015 the area has belonged to Natuurpunt, which bought it from its previous owners and folded it into the larger Wormelaar-Dalemansbos nature area.

What's worth seeing on a walk? The elongated pond with its islands, the smaller ponds scattered through the woods, the sources of the Kleempoelbeek and Molenbeek streams, old trees, and a historic chapel hidden among the greenery.

Can I visit with a dog? Yes, as long as it stays on a leash for the entire visit.