4.4
(171)
4,274
riders
182
rides
Gravel biking in Grotenhoutbos - Gierlebos offers diverse terrain within the Kempen region, characterized by extensive ancient forests, including century-old oak stands, alongside beech, ash, and alder woodlands. The area features varied subsoil, from rich to arid grasslands, supporting a wide array of plant life. A significant natural feature is Grotenhoutbos Lake, providing serene spots amidst old forests and heathlands, making it suitable for no traffic gravel bike trails.
Last updated: July 9, 2026
5.0
(1)
86
riders
75.8km
04:11
100m
100m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
12
riders
99.9km
05:49
150m
150m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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12
riders
Hard gravel ride. Very good fitness required. You may need to push your bike for some segments of this route.
9
riders
Easy gravel ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.
5.0
(1)
55
riders
56.3km
03:18
70m
70m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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Popular around Grotenhoutbos - Gierlebos
The Grotenhoutbos, also known as the Gierlese Bos, is a forest in Flanders, southwest of Turnhout, on the border of the municipalities of Vosselaar and Gierle. It covers an area of 375 hectares and is part of the Natura 2000 area "Forest and heathland areas east of Antwerp." https://nl.wikipedia.org/wiki/Grotenhoutbos
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It really is De Grote Nete here for anyone who still doubts...
7
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Generations of castle lords and the village community have cared for the magnificent heritage we have today. We must cherish this legacy with care. Everyone has a responsibility in this regard: the government, the owners, and certainly also the visitors. We all want to safeguard this for future generations. VORSELAAR: Proposal to protect the castle "de Borrekens", the rectory, the immediate surroundings of the castle, and the linden avenue as a village landmark. The castle was built in the thirteenth century as a military fortification for the Duke of Brabant, granted as a fief to the Lord Van Rotselaer. The latter gave the fortification, which had the character of a moated castle, the ground plan that can still largely be seen today. Little is known about its evolution since the thirteenth century. The castle is depicted in a print by Ertinger in the second half of the seventeenth century and published by Jacques Le Roy. This shows that the current castle's core still largely reflects this condition. The building's military character was lost in the eighteenth century, and it was converted into a "house of pleasure." This involved the demolition of several surrounding walls and defensive towers, and the moat separating the forecourt from the castle was filled in. Simultaneously or shortly before, several embellishments were carried out on the castle, with J.P. van Baurscheit as the architect. The buildings in the forecourt were constructed during the same period. In the 1850s and 1860s, restoration work was carried out in keeping with the fashion of the time. Several dormers, stepped gables, fireplaces, turrets, and battlements were added in the Neo-Gothic style. The interior was also altered during this period and in the same style. Although this renovation significantly altered the castle's appearance, the renovation itself is remarkable as a testament to the Neo-Gothic style that emerged in our region around 1850.
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Protected cycle path (gravel). Essentially a straight line from Oelegem to Sint Job in 't Goor (connecting with the Schoten Canal). Despite its straightness, it's not endless and offers plenty of variety.
3
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Do you mean Kleine Nete?
4
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Gradually the fish learn to swim...
5
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An idyllic spot with a view of the pond
6
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Grotenhoutbos - Gierlebos offers a wide selection of traffic-free gravel bike trails, with over 160 routes to explore. This includes 28 easy, 100 moderate, and 38 difficult options, ensuring there's a suitable ride for every skill level.
The terrain in Grotenhoutbos - Gierlebos is quite diverse, ranging from mostly paved sections to more challenging gravel paths. You'll encounter ancient forests, expansive grasslands, and heathlands. Some routes may require advanced riding skills or even short sections where you might need to push your bike, especially in more remote or natural areas.
Yes, the region offers several easy and moderate gravel bike routes that are suitable for families. These trails often feature mostly paved surfaces and less elevation, allowing for a more relaxed ride. Look for routes categorized as 'easy' to find the most family-friendly options.
You'll find a wealth of natural beauty and historical points of interest. Key attractions include the serene Gierle Grotenhoutbos Pond, where you can relax on benches with a view. The ancient Grotenhout Forest itself is a highlight, with its century-old oak and beech trees, and even a notable Tinder Fungus Tree. Some routes also pass by historical sites like Westmalle Castle.
Absolutely. For experienced riders seeking a challenge, Grotenhoutbos - Gierlebos has 38 difficult routes. An example is the nearly 99 km long Grotenhoutbos Lake – Along the Grote Nete loop from Vosselaar, which features significant elevation gain and varied terrain, perfect for testing your skills and endurance.
The region is enjoyable for gravel biking throughout much of the year. Spring and autumn offer pleasant temperatures and beautiful scenery with changing foliage. Summer is also great, especially for rides around the lake. Winter rides are possible, but be prepared for potentially muddy or wet conditions on unpaved sections.
Yes, many of the gravel bike trails in Grotenhoutbos - Gierlebos are designed as loops, allowing you to start and end at the same point. For instance, the Westmalle Castle – Zoerselbos loop from Gierle is a popular moderate option that takes you through diverse landscapes.
The komoot community highly rates the gravel biking experience in Grotenhoutbos - Gierlebos, with an average score of 4.3 stars from over 120 reviews. Riders frequently praise the peaceful, traffic-free nature of the trails, the diverse landscapes, and the opportunity to explore ancient forests and serene lakes.
Yes, some routes extend beyond the core forest area, connecting to nearby towns and landmarks. For example, the Vorselaar Castle – Borrekens Castle loop from Vosselaar offers a moderate ride that includes historical castles, providing a blend of nature and cultural exploration.
While many routes are gravel, some trails incorporate singletrack sections for a more dynamic riding experience. The Singletrack Through the Forest – Hollow Road and Climb loop from Vosselaar is a moderate route that specifically highlights singletrack riding, along with hollow roads and climbs.
Parking is generally available at various entry points to the forest. You can often find designated parking areas near popular trailheads. For specific locations, check the starting points of individual routes on komoot, which often include parking information or nearby facilities like the Bench at Grotenhoutbos Parking.


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