Canyons around Huldenberg are characterized by a hilly landscape featuring deep river valleys and ancient "hollow roads." These deeply incised paths, some dating back to Roman times, offer a unique sense of natural immersion and geological interest. The region's river valleys, such as the Dijle, IJse, and Laan, carve through forests, grasslands, and meadows. These formations provide diverse habitats and scenic routes for outdoor activities.
Last updated: June 3, 2026
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The sunken road itself is used by the more adventurous and probably younger cycling adventurer, judging by the small sand-jumping hills constructed in it.
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A sunken road is a road that is so deeply worn that it lies between two slopes. It is the result of centuries of use and erosion. The most beautiful sunken roads can be found especially in hilly areas with a subsoil that easily forms steep walls, such as in Haspengouw and Hageland.
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Lovely walking path that winds along an old sunken road.
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This narrow sunken road resembles a rain-soaked deep stream between the trees...
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After a lot of rainfall it can look quite acrobatic...
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Nice section, especially if you drive downhill, you can reach a nice speed
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Beautiful sunken road that goes steeply up
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The 'canyons' in Huldenberg are characterized by deep river valleys, such as those carved by the Dijle, IJse, and Laan rivers, and ancient 'hollow roads' (holle wegen). These deeply incised paths, some dating back to Roman times, offer a unique sense of natural immersion and geological interest, creating diverse habitats and scenic routes.
You can expect to see a rich variety of natural features, including dense forests, lush grasslands, and expansive meadows. The river valleys are home to diverse flora and fauna, especially in areas like the IJse valley and the De Doode Bemde nature reserve. The hollow roads create unique microclimates and serve as important ecological corridors for wildlife.
Yes, several stand out. The Hollow Way and Steps Huldenberg offers a trail through a gorge and forest with technical sections. The Deep sunken lane is a natural monument noted for its special ecosystems and can be up to 10 meters deep. For cyclists, the Hollow Way is known for its fast and tricky descent. Another interesting spot is Vernagelstraat, a challenging, narrow sunken road.
Huldenberg is a paradise for outdoor enthusiasts. You can enjoy various activities such as hiking, mountain biking, gravel biking, and running. There are numerous routes that take you through the valleys and hollow roads. For more detailed routes, you can explore guides like Running Trails around Huldenberg, Gravel biking around Huldenberg, and MTB Trails around Huldenberg.
While some sections can be technical, many parts of the river valleys and hollow roads are suitable for families. Look for trails described as 'easy' or 'intermediate' in difficulty. The scenic beauty and varied terrain offer engaging experiences for all ages, though some hollow roads might be more challenging for very young children or strollers due to uneven surfaces or steps.
The hollow roads and valleys are beautiful year-round. Spring brings blooming wildflowers, while summer offers lush greenery and cooler microclimates within the hollow roads. Autumn provides stunning foliage, and even winter can be picturesque, though some paths might be muddy after heavy rainfall. The hollow roads are particularly pleasant on hot days due to their cooler temperatures.
Generally, dogs are welcome on many of the trails in Huldenberg's natural areas, including the hollow roads and river valleys. However, it's always recommended to keep them on a leash, especially in nature reserves or areas with livestock, and to respect local signage regarding pet regulations.
The difficulty varies. Some hollow roads, like Hollow Way and Steps Huldenberg, feature technical sections and stairs, making them slightly challenging for beginner mountain bikers but manageable. Others, like the Deep sunken lane, are intermediate. Some paths can become quite acrobatic after heavy rainfall, so checking conditions is advisable.
The hollow roads are ancient paths, with some potentially dating back to Roman or medieval times. They were formed by centuries of erosion from water and traffic, gradually incising deep into the landscape. They offer a tangible link to the region's past and are a unique part of its cultural heritage.
Parking availability can vary depending on the specific starting point of your chosen route. Many trailheads or nearby villages offer public parking. It is advisable to check specific route details on komoot or local tourist information for the most convenient parking options for your planned exploration.
Yes, the region offers many scenic spots. The combination of rolling hills, dense forests, and winding rivers provides picturesque backdrops. From the top of some hollow roads, you can get nice views of the surrounding landscape. The contrast between the depth of the sunken roads and the vastness of the rolling fields is particularly beautiful.
Visitors frequently praise the scenic beauty and tranquility of the area, appreciating the escape from crowds. The unique geological formations of the hollow roads, their special ecosystems, and the diverse landscapes of the river valleys are highly valued. Many also enjoy the dynamic routes for cycling and the peaceful hiking opportunities.


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