The best traffic-free bike rides around Sivry-Rance

The lock, designated as the Sluis van La Plate Taille, was built as part of a large-scale water project developed in the second half of the 20th century. This project aimed to buffer water, prevent floods, create drinking water reserves, and provide a stable basis for energy production through hydropower. The lock allows water to be moved in a controlled manner between different levels and compartments of the lake system. Technically, the lock functions on the principle of water level regulation between two basins with different levels. Using sluice gates and lock doors, water can be slowly let in or drained, allowing ships (where applicable) or water masses to be moved safely without sudden pressure differences. In this specific case, the emphasis is less on shipping and more on hydrological control within the reservoir complex. Its location at La Plate Taille is hydrologically strategic. This lake serves as a central reservoir within the Lacs de l’Eau d’Heure and directly influences the water balance of the surrounding region. The lock helps regulate water levels, especially during heavy rainfall or dry periods, thus supporting the broader water management system. Ecologically, the lock indirectly contributes to the management of the ecosystem in and around the lakes. Controlled water movement affects the quality and distribution of water, which in turn impacts fish populations, aquatic plants, and bank vegetation. Managing the water level is therefore not only a technical but also an ecological responsibility.

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.

Possible bike ride, great scenery

for all bikes

Plenty of water sports to enjoy all around. Several cycling trails for all levels and bikes.

This large artificial lake is a superb hiking spot. The tour of the lake is a route of approximately 16 kilometers, allowing you to discover the banks of the lake and the Helpe Majeure river, through beautiful meadows and the Abbé-Val-Joly national forest.

A beautiful view of the Ardennes

The clarity of the water at this location justifies calling it a lagoon.