Best canyons around Lummen are characterized by unique topographical features rather than traditional deep gorges. The region, located in Belgium, offers natural landscapes with distinctive hollow roads and sunken lanes. These paths, eroded over time, create immersive walking experiences through earth banks and vegetation. Lummen provides scenic walks and interesting geological features for nature enthusiasts.
Last updated: May 3, 2026
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Nice single track through the sunken road that descends from grass forest to the railway. The sunken road is called the hellestraat.
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Hollow road that runs from Grasbos down to the Demer valley.
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There are two benches in beautiful places along this path. One of the "de Merode" landscape park type at the junction with the slow roads to the mill and a normal one in the bend a little further on where the road also becomes a little wider.
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One of the beautiful slow roads in Schaffen that with an expansion of the offer in recent years of Schaffen really have made an even nicer walking village. It takes you along and to various crossings of walking junctions along tree plantations, a much deeper sunken road and many beautiful views over Schaffen. Completely agree with Marc.
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Hollow roads (called deep streets here) only occur in hilly regions. They are typical for the loam region, but they can also be found in harder sandstone (such as here in Paal). They were created by man. They were used as a connecting road between farm and field and due to frequent use, loose sand was washed down the slope with every rain shower. In this way, the road was hollowed out deeper and deeper. A hollow road has a mild temperature, the wind has no effect on it. The silence is also noticeable during a walk in the shelter of a deep street.
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Pleasant walk on a hollow overgrown path
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The name Holleweg appears at quite a few points here, it is easy to lose your way. Just look at the map or Google Maps: there is a Holleweg that starts at the Turnhoutsebaan and makes a half turn at brasserie Jeffrey's to the same Turnhoutsebaan, but closer to Diest. At the same time you have two stretches of Holleweg that leave/arrive on the rightmost part of that half-ellipse: the Holleweg as the narrow road that descends to Diest AND at the same place the Holleweg as a larger track that goes to the left, upwards, and where some of those typical large houses with a view over Diest are located. So you can prepare quite well :) At a certain point you can even look from the Holleweg all the way into the depths to a smaller sunken road with the name, indeed, Holleweg.
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The 'canyons' in Lummen are not traditional geological gorges but rather unique topographical features known as hollow roads and sunken lanes. These paths have been deeply eroded over time by frequent use and natural processes, creating immersive, tunnel-like experiences through earth banks and dense vegetation. They offer a distinctive walking experience within the region's natural landscapes.
Some of the most appreciated hollow roads include Hollow Way, known for its historical significance and gentle slope, and Hellestraat Sunken Lane, a popular route for both hikers and mountain bikers descending into the Demer valley. Another favorite is Hollow Lane of Schaffen, offering pleasant walks and views over Schaffen.
Yes, many of the hollow roads offer pleasant walks suitable for families. Their unique, sheltered environment and relatively gentle slopes make them an interesting and accessible experience. For instance, the Hollow Lane of Schaffen provides a pleasant walk along tree plantations, which can be enjoyable for all ages.
While specific wildlife sightings vary, the natural areas around Lummen, such as the Valley of the Black Brook and Schulensbroek nature reserve, are known for diverse birdlife and other small animals typical of wet grasslands and forested areas. The hollow roads themselves, with their sheltered and often overgrown nature, can provide habitat for various insects and smaller creatures.
The hollow roads and natural landscapes around Lummen are beautiful year-round. Spring brings lush greenery and blooming flora, while autumn offers vibrant colors. Summer provides a cool, sheltered environment within the hollow roads. Even in winter, the unique formations can be explored, though some paths might be wetter.
Generally, dogs are welcome on most public trails in Belgium, including those around Lummen's hollow roads, provided they are kept on a leash and owners clean up after them. It's always advisable to check local signage for any specific restrictions in certain nature reserves or protected areas.
Beyond exploring the hollow roads, Lummen offers a variety of outdoor activities. You can find numerous running trails, mountain biking routes, and cycling paths. The Schulensmeer, one of Flanders' largest lakes, is also nearby, offering opportunities for water sports and relaxation.
Yes, some hollow roads, like the Hellestraat Sunken Lane, are popular with mountain bikers. Additionally, Lummen has dedicated MTB trails that incorporate various terrains, including some forest and singletrack sections that might feature similar eroded paths.
Most trails through Lummen's hollow roads are considered intermediate. While they don't involve steep climbs or technical terrain typical of traditional canyons, the paths can be uneven, and some sections might be muddy, especially after rain. The unique sunken nature of these paths provides a moderate and engaging walking experience.
Yes, within the Valley of the Black Brook, an elevated point called Venusberg offers expansive views over the entire valley. Additionally, the Domein Duizendjarige Eik features a watchtower that provides scenic vistas over the Valley of the Zwarte Beek, allowing visitors to appreciate the broader landscape.
Walking through a hollow road offers a unique experience. These paths maintain a mild temperature, are sheltered from the wind, and provide a noticeable sense of silence. Their deeply eroded banks and dense vegetation create an immersive, almost fairytale-like atmosphere, making for a tranquil and enchanting walk.
The Valley of the Black Brook is a significant natural area where many hollow roads are found. Another notable reserve is the Schulensbroek nature reserve, adjacent to the Schulensmeer, known for its wet grasslands and diverse birdlife, offering additional opportunities for nature exploration.
The Hellestraat Hollow Way Singletrack is a specific trail that runs through the Hellestraat sunken road. It's a popular singletrack route that descends from the Grasbos area towards the railway, offering an engaging experience for hikers and mountain bikers alike.


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