Best natural monuments in Mollendaalbos are part of the larger Meerdaalwoud and Heverleebos complex, forming an expansive mixed deciduous forest. This area features sandy to loamy soil, supporting diverse plant life adapted to nutrient-poor grounds. The forest is characterized by dominant beech and oak trees, with many old specimens contributing to its natural environment. Mollendaalbos offers an extensive network of trails for experiencing its flora and ancient trees.
Last updated: June 30, 2026
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One can wander around here for hours.
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Already 304 years old? Time flies!
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The Bierbeekse gate to the Meerdaalwoud offers a parking lot with information board, accessible via a short cobblestone path, located opposite a charming white house. From the parking lot, which of course has a picnic bench and more, you can easily reach the forest with some beautiful stately avenues. The information board focuses on the sights and activities for children in the vicinity of this part of Meerdaalwoud. The map on the information board shows you the entire region, between Egenhovenbos and here with Heverleebos and the Meerdaalwoud, both of which have existed since after the last Ice Age and together cover 2000 hectares. You are also close to the language border here.
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From Mollendaal up a treacherous cobblestone road that hurts the calves, but with a concrete gutter next to it. Continues to climb imperceptibly but steeply.
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Beautiful to see and pleasant to have a picnic here in the middle of nature
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Beautiful in March/April when the wood anemones bloom.
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Together with the Egenhoven Forest, the Meerdaal Forest and the Heverlee Forest cover an area of 2050 hectares and form the largest mixed deciduous forest in Flanders. In contrast to the otherwise fertile soils of the surrounding lands, this soil is sandy to loamy. Therefore, you will find a large variety of plants such as coltsfoot, common sage bush, moorberry, wild strawberry, chickweed, marsh fern and false sage, which are satisfied with nutrient-poor soils. Be very quiet and you might see deer - in these forests you will find the oldest deer population in Flanders. Bird lovers will also get their money's worth here and can watch songbirds and birds of prey. Don't be surprised if you suddenly see dwarves, monsters, trolls or goblins - the oxygen hasn't gone to your head. On the "Path of Ad" you can discover mysterious and fairytale tree sculptures.
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Beyond the expansive Meerdaal Forest and Heverlee Forest, you can discover the impressive Thick Oak, a monumental tree over 300 years old with a trunk circumference of more than 5 meters. Another notable spot is Kathedraaldreef - Pruikemakers, a forest trail where stately old trees create a cathedral-like canopy.
Yes, several natural monuments are suitable for families. The Meerdaal Forest and Heverlee Forest complex itself is family-friendly, offering diverse plant life and the chance to spot deer. The Thick Oak is a great spot for a picnic, and the "Het fluiterke" sculpture provides a fairytale-like picnic area with unique tree sculptures that kids often enjoy.
Mollendaalbos is home to the oldest deer population in Flanders, so if you are quiet and observant, you might spot them. Bird lovers can also enjoy watching various songbirds and birds of prey within the Meerdaal Forest and Heverlee Forest complex.
The terrain in Mollendaalbos is characterized by sandy to loamy soil, supporting a wide variety of plant life adapted to nutrient-poor grounds. The forest is dominated by beech and oak trees, with many ancient specimens. You'll find an extensive network of trails, generally suitable for walking or cycling, with some areas featuring slight inclines or cobblestone paths.
Yes, you can find historical elements within the forest. For instance, the Earthen embankment for 'Lakenjacht' is a 17th-century remnant of a hunting technique, featuring an almost 2-meter-high earth wall that is 6 to 7 meters wide at its base and approximately 400 meters long.
Mollendaalbos offers a variety of outdoor activities. You can explore numerous running trails, with options like the 'Mommedeel Shelter loop' or the 'Warandedreef in Meerdaalwoud' loop. For cycling enthusiasts, there are gravel biking routes, including the 'Meerdaal Forest and Heverlee Forest' loop. Hiking is also very popular, with trails such as the 'Mollendaal Shelter – Church Road loop' available. You can find more details on these activities in the Running Trails in Mollendaalbos, Gravel biking in Mollendaalbos, and Hiking in Mollendaalbos guides.
Visitors frequently appreciate the grandeur of the ancient trees, the extensive forest ecosystems, and the unique natural features. The Thick Oak is often highlighted as a perfect picnic spot, and the Kathedraaldreef - Pruikemakers is praised for its impressive, cathedral-like atmosphere. The overall tranquility and natural beauty of the forest are also highly valued.
While not a traditional viewpoint, the area around the "Het fluiterke" sculpture offers a beautiful view, particularly from its picnic bench, overlooking the unique tree sculptures by artist Ad Wouters. The Kathedraaldreef - Pruikemakers also provides a highly scenic experience with its impressive canopy of old trees.
Mollendaalbos offers beauty throughout the year. Spring (March/April) is particularly recommended when the wood anemones bloom, adding vibrant color to the forest floor, especially around the Thick Oak and along the Kanselierdreef near Kathedraaldreef - Pruikemakers. Autumn also brings stunning foliage as the deciduous trees change color.
While Mollendaalbos is generally welcoming to visitors, specific dog rules can vary. It's always advisable to keep dogs on a leash to protect wildlife and ensure a pleasant experience for all visitors. Please check local signage upon arrival for any specific regulations regarding pets in certain areas.
The time required depends on which natural monuments you wish to visit and the length of your chosen route. For example, a moderate hike like the 'Mollendaal Shelter – Church Road loop' is about 10.4 km and can take a few hours. Shorter walks focusing on individual highlights like the Thick Oak or Kathedraaldreef - Pruikemakers can be done in under an hour, depending on your starting point.
While the immediate vicinity of the natural monuments within the deep forest may not have direct facilities, the broader Mollendaalbos area and surrounding villages offer options for cafes and pubs. It's recommended to check for establishments in nearby towns like Blanden or Vaalbeek before or after your visit.


Extend your search for the best caves by checking out these guides of the top ones in Mollendaalbos: