4.4
(270)
2,213
riders
131
rides
Mountain bike trails in Bois Robert are primarily found within a forested region around Thuin, offering diverse terrain for riders. The area is characterized by its varied elevation, with routes featuring climbs and descents through woodlands and along river valleys. This landscape provides a mix of technical sections and flowing paths, making it a popular destination for mountain biking.
Last updated: May 13, 2026
4.6
(8)
37
riders
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
3.0
(1)
12
riders
52.3km
03:04
480m
480m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.

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4
riders
Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.
6
riders
18.8km
01:31
200m
200m
Moderate mountain bike ride. Great for any fitness level. Advanced riding skills necessary.
4.0
(1)
11
riders
29.5km
01:38
210m
210m
Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.
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The Plate-Taille Dam is located in southern Belgium in Wallonia, on the border of the provinces of Namur and Hainaut. The dam is situated near the villages of Froidchapelle and Cerfontaine and forms the central element of the Lacs de l’Eau d’Heure lake district, the largest artificial lake complex in the country. This area covers approximately 1800 hectares and consists of several interconnected lakes that together form a unique landscape of open water, wooded hills, and extensive recreational zones. Due to its location between the Ardennes and the Fagne, the area has a varied and gently rolling terrain. The origin of the dam dates back to the 1970s when Belgium faced water management problems. The Sambre River, an important waterway for industry and shipping, experienced highly fluctuating water levels. During dry periods, the water level dropped too low, which had economic consequences. To solve this problem, an ambitious project was launched, including the construction of a series of dams on the Eau d’Heure River and its tributaries. The construction of the Plate-Taille dam began around 1974 and was completed in 1981. As a result of its construction, five lakes were created: * Plate Taille (the largest and deepest) * Eau d’Heure * Falemprise * Ry Jaune * Féronval The construction brought about a major change for the region. Certain areas were submerged, and residents had to relocate. At the same time, this project laid the foundation for a new economic model based on tourism and recreation. The Plate-Taille dam is the largest dam in Belgium and an impressive example of modern hydraulic engineering. The Plate Taille lake itself has a surface area of approximately 350 hectares and is the largest and deepest lake in Belgium. The dam holds back an enormous mass of water and literally forms the heart of the entire lake district. One of the dam's main functions is energy generation through a pumped-storage power plant. * Capacity: ± 140 megawatts * Number of turbines: 4 (reversible) * Type: pumped-storage power plant System Operation The system operates on a clever principle: * During low energy demand, water is pumped to a higher reservoir. * During high energy demand, the water flows back down through turbines, generating electricity. This makes the plant particularly valuable for stabilizing the electricity grid, especially in combination with renewable energy sources such as wind and solar power. Around the dam lies a surprisingly rich nature reserve. The combination of water, forests, and open plains ensures great biodiversity. The landscape is characterized by: * Dense deciduous and coniferous forests * Open grasslands * Reed beds along the banks * Quiet bays and small islands Animals found here include: * Roe deer * Foxes * Waterfowl such as grebes and cormorants * Birds of prey The creation of the lakes has led to new ecosystems where flora and fauna have adapted to the water-rich environment. For someone who enjoys long and challenging hikes, like myself, this area is ideal, and you can easily create routes of several hours here without much crowds. 🚴♂️ Cycling and Recreation Besides hiking, the area is also popular with: * Road cyclists (hilly terrain) * Mountain bikers * Families (flat cycling paths around the lakes) There are well-maintained cycling routes that connect the entire lake district. 🚤 Water Sports and Activities The Lacs de l’Eau d’Heure are the center for water sports in Belgium. Possibilities: * Sailing * Kayaking * Windsurfing * Diving (in certain zones) * Swimming Motorized water sports are permitted to a limited extent, which contributes to a relatively calm and natural atmosphere. 🧭 Tourist Facilities The area is highly developed for visitors without losing its natural charm. Key attractions: * Skywalk Plate-Taille – a panoramic tower with views over the entire area * Natura Parc L’Eau d’Heure – adventure park with climbing routes and zipline * Marinas and beach areas * Holiday parks and campsites This makes the area suitable for both day trips and longer stays.
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Plenty of water sports to enjoy all around. Several cycling trails for all levels and bikes.
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peaceful place for a well-deserved meal (rest).
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beautiful typical village
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The small waterfalls of the Eau Blanche River are a hidden natural wonder in the region. These charming waterfalls are located in a picturesque and unspoilt setting, where the clear waters of the Eau Blanche meander over rocks and vegetation. The river flows through a wide, wooded landscape.
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The Blaimont viaduct is an imposing railway structure built in 1856. This viaduct, 135 meters long and 26.5 meters high, with its eight arches, was erected to allow the railway to cross the Eau valley White. Using materials extracted from local quarries, it narrowly escaped destruction during both world wars.
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The Trou des Saracens is a karst cave formed several million years ago. Used since the Neolithic era, this site served as a refuge and habitat. The waters deposited stones containing iron ore, called “Sarrazin” by the local inhabitants, supplying the Virelles forges until the 18th century. Today, the cave is protected for its archaeological and ecological value, particularly for the hibernation of bats.
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Bois Robert offers a comprehensive network of over 120 mountain bike trails. These routes cater to various skill levels, with 37 easy, 77 moderate, and 10 difficult trails available for exploration.
Trail lengths in Bois Robert vary significantly. For instance, an easy route like Chimay – Blaimont Viaduct loop from Parc national de l’Entre-Sambre-et-Meuse is about 9.9 miles (16.0 km) and takes around 1 hour to complete. Longer, moderate trails such as By the Eau Blanche – Blaimont Viaduct loop from Parc national de l’Entre-Sambre-et-Meuse can extend to 17.7 miles (28.5 km) and take over 2 hours.
Yes, Bois Robert has 37 easy mountain bike trails suitable for families and beginners. A great option is the Chimay – Blaimont Viaduct loop from Parc national de l’Entre-Sambre-et-Meuse, which is 9.9 miles (16.0 km) long and offers a pleasant ride through the natural park with views of the viaduct.
The mountain bike trails in Bois Robert are characterized by dense woodlands, river valleys, and varied elevation changes. You'll find a mix of technical sections and flowing paths, with routes featuring climbs and descents through forests and along waterways.
Absolutely. Bois Robert offers 10 difficult mountain bike trails for experienced riders seeking a challenge. These routes typically feature more significant elevation changes and technical sections within the forested terrain.
The komoot community highly rates the mountain biking experience in Bois Robert, with an average score of 4.4 stars from over 350 reviews. Riders often praise the diverse terrain, the scenic river valleys, and the extensive network of routes that cater to all skill levels.
Yes, many of the trails in Bois Robert are designed as loops, offering convenient circular routes. Examples include the popular By the Eau Blanche – Blaimont Viaduct loop from Parc national de l’Entre-Sambre-et-Meuse and the Blaimont Viaduct – Stone Bridge - Lompret loop from Robechies.
While riding, you might encounter various points of interest. Notable attractions include the View over the Étang de Virelles, the historical Wellington HE652 Memorial, Virelles, and the serene Our Lady of Light. There are also dedicated cycle paths like the RAVeL L109 Cycle Path and RAVeL L156: Chimay to Aublain that offer additional scenic routes.
The forested nature of Bois Robert makes it enjoyable across multiple seasons. Spring and autumn offer pleasant temperatures and vibrant scenery, while summer provides lush green landscapes. Always check local weather conditions before heading out, as rain can affect trail conditions.
Yes, for those looking for longer rides, Bois Robert offers routes that extend further. For example, the Mountainbike loop from Chimay covers nearly 24.2 miles (39 km) and involves significant elevation gain, making it a substantial ride.
The trails in Bois Robert feature varied elevation changes, ranging from gentle undulations to more challenging climbs and descents. For instance, the By the Eau Blanche – Blaimont Viaduct loop has an elevation gain of approximately 286 meters, while the Mountainbike loop from Chimay includes nearly 580 meters of ascent.


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