Best lakes in Wallonia are found in the southern region of Belgium, offering diverse natural landscapes and recreational opportunities. The area features a collection of artificial lakes, often nestled within nature parks or surrounded by forests. These lakes serve various purposes, including drinking water supply and hydroelectric power, while also providing extensive facilities for outdoor activities.
Last updated: May 9, 2026
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An overall beautiful lake with a great path to go around. Although in the summer with warm weather it can also be very busy. Via the adjacent Vennradweg it is also top to reach by bike.
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The Bütgenbach dam was built between 1929 and 1932. The main function of the dam is to regulate the course of the Warche river. This created the lake of Bütgenbach. It is a starting point for beautiful, popular hiking routes: for example, a 10-kilometer walk can be made around the lake.
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Beautiful but very busy. Good to know!
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Early in the morning to avoid the crowds
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The lake/dam is beautiful to look at from the Vennbahn. Access to the water is limited. I have to mention that I don't know my way around there.
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The Bütgenbach reservoir is always a great destination for a day trip. It is also easy to reach via the Vennbahn cycle path. There are great landscapes along the way.
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Wallonia's lakes are nestled within diverse natural landscapes. You'll find lush forests, such as those surrounding Lac de Robertville and Lac de Nisramont, and extensive meadows. The region also features unique geological formations like the peat formations at Brackvenn Moor Lakes, which are ancient palsas or pingos formed at the end of the last ice age. Many lakes are artificial, created by impressive dams like the Robertville Dam and the Barrage de Plate Taille at the Lakes of Eau d'Heure, offering scenic viewpoints.
The Lakes of Eau d'Heure are a prime destination for water sports, offering swimming, diving, windsurfing, paddleboarding, kayaking, fishing, sailing, jet skiing, and water skiing at the Spin Cable Park. Lac de Bütgenbach is excellent for sailing, windsurfing, kayaking, canoeing, stand-up paddleboarding, and pedal boating. At Lac de Robertville, you can rent electric boats, pedal boats, rowboats, or kayaks, and there are designated swimming areas. Lac de Nisramont allows non-motorized water sports like stand-up paddleboarding, kayaking, canoeing, and packrafting, while Lac de Warfaaz offers pedal boat rentals.
Yes, many lakes in Wallonia offer family-friendly activities. The Lakes of Eau d'Heure provide a wide array of options, including swimming, an adventure park with ziplining, and the Aquascope nature center. Lac de Bütgenbach features the 'VENNtastic Beach' with monitored swimming zones, trampolines, pedal boats, and play areas. Lac de Robertville has designated swimming areas with a water trampoline and diving board, plus mini-golf. Lac de Warfaaz includes picnic tables and a children's playground, and the Château de La Hulpe also offers a family-friendly park environment.
The best time to visit Wallonia's lakes largely depends on your preferred activities. For swimming and water sports, the summer months (May to September) are ideal, with designated swimming areas often open and lifeguards on duty. Spring and autumn offer pleasant temperatures for hiking and cycling, with beautiful foliage changes. Even in winter, the High Fens region, near lakes like Robertville and Bütgenbach, can be breathtakingly beautiful, though specific lake activities might be limited.
Absolutely. The Lakes of Eau d'Heure boast extensive hiking and biking trails ranging from 2.2 km to 24 km. Lac de Robertville is surrounded by marked trails, including routes to nearby attractions like Castle Reinhardstein. Lac de Bütgenbach has a popular 10.5 km route circling the lake. Lac de Nisramont offers a challenging 14 km trail with significant elevation changes and magnificent viewpoints. You can find many more options for mountain hikes in Wallonia by exploring Mountain Hikes in Wallonia.
Yes, cycling is a popular activity around Wallonia's lakes. The Lakes of Eau d'Heure offer numerous biking trails, including the RAVeL Eau d'Heure Lakes Tour. Lac de Bütgenbach has a popular 10.5 km route that circles the lake, suitable for cycling. The area around the Weser Reservoir (Eupen Dam) also provides great trails for mountain biking. For more cycling routes, check out the Cycling in Wallonia guide.
Yes, some lakes offer accessible paths. Lac de Warfaaz, near Spa, features a gentle 1 km paved stroll around the lake that is accessible to people with reduced mobility. Additionally, the park surrounding Château de La Hulpe, which includes a lake, is also noted as wheelchair accessible.
Near Lac de Robertville, you can explore the historic Castle Reinhardstein. The Lakes of Eau d'Heure feature the Barrage de Plate Taille, the largest dam in Belgium, which offers tours and a skywalk. The Château de La Hulpe, a castle built in 1842, is surrounded by beautiful gardens and is freely accessible, though the castle itself is not. The Gileppe Dam Lion is another notable man-made monument with historical significance.
Yes, the diverse terrain around Wallonia's lakes provides excellent opportunities for running. Many of the hiking trails are also suitable for running, offering varied distances and difficulty levels. For dedicated running routes, you can explore guides like Running Trails in Wallonia, which includes routes like the 'Great Trail of Lakes & Castles' and the 'Tour of Lake Gileppe'.
Yes, many lake areas in Wallonia offer amenities for visitors. The Eupen Reservoir (Wesertalsperre) has an excursion restaurant with delicious food and views. Lac de Nisramont features a tavern near the dam. The Lakes of Eau d'Heure region is well-developed with various facilities, including wellness options. You'll often find cafes, pubs, and accommodation options in the towns and villages surrounding the more popular lakes like Robertville and Bütgenbach.
The Lakes of Eau d'Heure form the largest lake complex in Belgium, offering an unparalleled variety of activities. With 600 hectares of water and extensive surrounding forests, it's a hub for water sports like swimming, diving, windsurfing, and jet skiing. Beyond the water, visitors can enjoy mountain biking, an adventure park, and extensive hiking trails. The area also features cultural attractions like the Aquascope nature center and the impressive Barrage de Plate Taille with its skywalk, making it a comprehensive destination for adventure and relaxation.
Yes, fishing is generally permitted in many of Wallonia's lakes, often with a regional Walloon license. Lac de Nisramont allows fishing, and Lac de Warfaaz is a popular spot for catching species like roaches, tenches, and carps. Always check local regulations and licensing requirements before you go.


Still not found your perfect lake in Wallonia? Check out the guides of these regions to see even more beautiful places.