Attractions and Places To See around L'Eau d'Heure - Top 7

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 development of the dams and associated lakes began in the second half of the 20th century with the aim of providing a structural solution to several problems in the region. On the one hand, it involved regulating water flows and limiting flood risks in downstream areas. On the other hand, the project was set up to create a strategic water supply for industrial and domestic use and to generate energy through hydropower plants. The dam itself is part of a network of several dams that together delineate several artificial lakes. This infrastructure is technically designed to store water and release it in a controlled manner depending on rainfall, demand, and ecological requirements. The constructions consist of massive concrete works with adjustable outlets and safety mechanisms to accurately manage the water level. Hydrologically, the system has a major impact on regional water management. The lakes act as a buffer that absorbs peak flows during heavy rainfall, thereby reducing the risk of flooding in downstream rivers such as the Sambre and Meuse. In addition, controlled water management ensures a more stable water supply during dry periods. Ecologically, the construction of the dams has led to the creation of new ecosystems around the artificial lakes. The bodies of water attract various bird species and support diverse flora and fauna. At the same time, management requires attention to the balance between recreational use, water quality, and natural habitats. Today, the area around the L’Eau d’Heure dam has grown into an important recreational center. The lakes are used for water sports, tourism, and relaxation, giving the area an economic function in addition to its original water management task. This makes it a multifunctional landscape where engineering, nature, and recreation come together.

Lake Ry-Jaune is the fourth largest lake in terms of surface area of the five reservoirs. It is located just behind the Eau d’Heure, Plate-Taille and Falinfluence lakes. And just in front of Féronval.

From here you can see the jet skis doing their magic on the water. If they see you photographing, they might come and put on a show.

A beautiful crossing point

The largest lake district in Belgium is perfect for hiking. You can explore deep forests, wide fields and of course the shore paths around the many bays of the lakes.

From this point you can see the jet skis at work and the fish swimming in the water.