4.4
(698)
8,283
riders
226
rides
Mountain bike trails in Gruitroderbos are set within the diverse landscapes of Limburg, Belgium, forming part of the expansive Duinengordel and Hoge Kempen National Park. The region features a mix of pristine forests, vibrant heathlands, and sand dunes, including the prominent Oudsberg-Sanddune. This varied topography provides a dynamic environment for mountain biking, with routes traversing through natural features like ponds and woodlands.
Last updated: June 24, 2026
4.4
(25)
175
riders
18.8km
01:29
60m
60m
Moderate mountain bike ride. Great for any fitness level. Advanced riding skills necessary.
4.0
(2)
11
riders
48.5km
03:09
160m
160m
Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary.

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1
riders
Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.
4.3
(6)
153
riders
43.5km
03:06
260m
260m
Hard mountain bike ride. Good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.
4.1
(9)
123
riders
37.8km
02:50
110m
110m
Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary.
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Station As is a former railway station on lines 21A (Hasselt-As) and 21B (As-Eisden). The station building now houses a restaurant and the Kolenspoorvereniging (Coal Railway Association) uses it for the operation of the tourist railway line Waterschei-As-Eisden. Station As is also one of the gateways to Hoge Kempen National Park and has an observation tower.
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Enjoy an exceptional view
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Nice place for walking and cycling.
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At the edge of the large lake lies a tranquil jetty, a spot that immediately invites you to pause for a moment. The wooden platform extends slightly out into the water, offering a beautiful, unobstructed view of the wide lake. Here, the scents of pine forest and fresh water merge, and all you hear is the gentle lapping against the jetty. It's a place where dragonflies skim low over the surface and waterfowl regularly glide by. In calm weather, the lake transforms into a mirror, sharply reflecting clouds and treetops.
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Beautiful view over the surroundings
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A ride on the little train is a wonderful surprise for all ages. And those who want and are able can climb the tower, where a magnificent view of the former coal-mining region awaits.
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The 31-meter-high observation tower is a replica of the drilling rig André Dumont used to extract the first coal in 1901. This tower is located at the As station and is free to visit. It offers a panoramic view of the station site and the surrounding National Park.
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Gruitroderbos offers a wide network of mountain bike trails. There are over 220 routes available, catering to various skill levels, including approximately 30 easy, over 170 moderate, and around 20 difficult trails.
The terrain in Gruitroderbos is incredibly diverse, ranging from pristine forests and expansive heathlands to unique sand dunes, including the prominent Oudsberg Sand Dune. You'll encounter varied surfaces and elevations, with some routes featuring technical sections and single-track, while others offer smoother rides through woodlands and past ponds like Ruiterskuilenvijver.
Yes, Gruitroderbos has options suitable for families. For instance, the MTB Trails at Oudsberg – Ruiterskuilen Pond loop from Neerglabbeek is an easy 23.7 km route that takes you through the Oudsberg area and past Ruiterskuilen Pond, offering a pleasant experience for less experienced riders or families.
You'll find several interesting natural features and landmarks. The most prominent is the Oudsberg Sand Dune, a significant natural monument. You might also pass by the tranquil Forest Chapel of Our Lady of Rest (Gruitroderbos), which serves as a peaceful resting spot. The region is also rich in forests, heathlands, and ponds, contributing to its scenic beauty.
Yes, for experienced riders seeking a challenge, Gruitroderbos offers difficult routes. An example is the Final Stretch to the Summit – Winterslag spoil tip loop from Opglabbeek, a 43.5 km trail with significant elevation changes, providing a demanding ride.
The mountain bike trails in Gruitroderbos are highly regarded by the komoot community, with an average rating of 4.4 stars from over 600 reviews. Riders often praise the diverse landscapes, well-maintained paths, and the immersive experience of riding through forests, heathlands, and past unique sand dunes.
Yes, Gruitroderbos is an integral part of the larger Hoge Kempen National Park and the Duinengordel (Dune Belt), which features an extensive mountain bike network. This means many trails connect, allowing for longer rides and varied exploration within this beautiful region of Limburg, Belgium.
Absolutely. The Green Dune Belt (Oudsberg) - Mountain bike network Hoge Kempen is a moderate 18.8 km trail specifically designed to explore the unique dune belt landscape, offering a distinct riding experience through this natural monument.
Gruitroderbos can be enjoyed year-round, but spring and autumn often offer the most pleasant conditions with milder temperatures and vibrant scenery. Summer is also popular, though trails can be busier. Winter riding is possible, but be prepared for potentially muddy or wet conditions, especially after rain.
Yes, for those looking for longer rides, routes like the Bicycle Bridge Station As – Pier at the Grote Plas loop from Neerglabbeek offer an extensive 49.7 km path. This moderate route provides a comprehensive tour through varied terrain, including sections near water features.
Yes, Gruitroderbos is known for its diverse trails, including single-track sections. The region even features a dedicated 'MTB-oefenparcours' (MTB practice course) with a 1.5 km single-track section, allowing riders to hone their skills. You'll find single-track elements integrated into various routes, such as the Bicycle Bridge Station As – Stokkemerbosven Singletrack loop from Opoeteren.


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