Best lakes in the Ardennes are found across Belgium, France, and Luxembourg, offering diverse natural landscapes. This region features lush greenery, extensive forests, and significant elevation changes, making it suitable for outdoor activities. Many of these lakes are man-made reservoirs, often created for hydroelectric power or water supply, blending seamlessly into the natural environment. They provide various recreational opportunities, serving as central points for nature observation and water sports.
Last updated: April 25, 2026
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Built in 1958 to supply the region with drinking water and for the production of hydroelectricity. You can cross the dam and there is a water purification station and a fish ladder.
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Paved, no cars, partly sun and shade, quiet
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The Nisramont dam complex was built in 1958. The intention was actually to create a much larger lake with a dam at the Celtic site of Le Cheslé. Not coincidentally there, because as we will notice during the next stage on the Escapardenne Eislek Trail, the Ourthe is strongly incised here and it is therefore technically ideal to dam even further downstream from that deep incision. The storage capacity is expected to be up to 250 million m³. The current Nisramont dam was therefore built as a temporary project, but more than 50 years later it is still standing.
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Here is a small hut overlooking the Ourthes.
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The Ardennes lakes offer a wide range of water sports. At the L'Eau d'Heure Lakes, you can enjoy kayaking, canoeing, windsurfing, paddleboarding, water skiing, sailing, jet skiing, motor boating, rowing, pedalos, swimming, and diving. Lac de Nisramont is great for stand-up paddleboarding, kayaking, and packrafting. Other lakes like Bütgenbach Lake, Lac des Vieilles Forges, Lac de Bairon, and Haute-Sûre Lake also provide opportunities for activities such as swimming, windsurfing, pedal boating, canoeing, and sailing.
Yes, many lakes in the Ardennes feature excellent hiking trails. For instance, a challenging 14-kilometer trail with significant elevation changes encircles Lac de Nisramont. Bütgenbach Lake has a 10-kilometer trail around its edge, and Lac des Vieilles Forges offers an 11-kilometer trail suitable for hiking and mountain biking. The area around Haute-Sûre Lake, part of the Upper Sûre Nature Park, is also known for its well-maintained hiking trails. You can find various hiking routes, including easy and difficult options, near the lakes. For example, explore routes like 'Panoramic views, rocks and torrents in Xhoffraix' or 'Lake Coo Loop' via the waterfall hikes guide.
Several lakes in the Ardennes boast impressive viewpoints and unique features. The L'Eau d'Heure Lakes complex features the largest dam in Belgium, offering a 360-degree panoramic view from its 107-meter tower. Gileppe Lake is notable for its 77-meter observation tower, providing stunning vistas of the surrounding hills and forests. The Esch-sur-Sûre Dam also offers wonderful views of the Upper Sûre Lake. Additionally, the Robertville Dam is a popular starting point for walks with scenic surroundings.
Absolutely. The L'Eau d'Heure Lakes are a major family hub with an Aquacentre for children's water games, mini-golf, and the Red Crocodile amphibious vehicle tours. Conchibois Lake has a playground and skate park. Lac des Vieilles Forges offers supervised swimming, a sandy beach, a tree-climbing park, nature games, and the Wi-Splash water park. Lac de Bairon also has a small beach with supervised swimming and activities like archery and mini-golf. The Worriken sports and leisure center near Bütgenbach Lake provides additional family activities.
For swimming, Robertville Lake is an excellent choice, featuring a professionally managed swimming area with changing cabins, showers, a cafeteria, and lifeguards. Conchibois Lake is known for its high water quality and has been awarded the 'Blue Flag' label, offering a refreshing stop. Lac des Vieilles Forges and Lac de Bairon both provide supervised swimming during the summer months with sandy beaches. Haute-Sûre Lake also allows swimming in designated areas.
Yes, the Ardennes lakes are rich in natural beauty and offer opportunities for wildlife observation. Haute-Sûre Lake is a central attraction of the Upper Sûre Nature Park, perfect for bird watching and enjoying pristine natural beauty. Lac de Bairon is a recognized bird-watching center, home to approximately 150 bird species, with a discovery trail for nature observation. The lush greenery and forests surrounding lakes like Lac de Nisramont and Robertville Lake also provide serene environments for reconnecting with nature.
Yes, the Ardennes region is well-suited for cycling and mountain biking. Many lakes, such as the L'Eau d'Heure Lakes and Lac des Vieilles Forges, offer dedicated cycling and mountain biking trails. The area around Haute-Sûre Lake is also excellent for cycling. You can explore various routes, including challenging gravel biking options, in the region. Check out the gravel biking guide for routes like the 'Houffalize MTB Network Loop' or 'The High Fens loop from Ovifat'.
The best time to visit the lakes in the Ardennes largely depends on your preferred activities. For water sports, swimming, and enjoying beaches, the summer months (June to August) are ideal. Spring (April to May) and autumn (September to October) offer pleasant temperatures for hiking and cycling, with beautiful scenery as the foliage changes. Winter can be picturesque, but many water-based activities may not be available.
Yes, major lake destinations in the Ardennes typically offer parking facilities. Popular sites like the L'Eau d'Heure Lakes, Lac de Nisramont, and Lac de la Gileppe are equipped with parking areas to accommodate visitors. It's always advisable to check specific location details if you plan to visit during peak season, as parking can fill up quickly.
Many areas around the Ardennes lakes are dog-friendly, especially for walks and hikes. However, specific regulations regarding dogs on beaches, in swimming areas, or within nature reserves can vary by lake. It's generally recommended to keep dogs on a leash and clean up after them. Always check local signage or specific lake websites for detailed rules before your visit.
The Ardennes region has a rich history, and some lakes are close to notable sites. For example, Robertville Lake is a short walk from the picturesque Reinhardstein Castle. The View of the Abbey's castle overlooks a pond that once served a hydraulic power purpose, reflecting a castle built in the 1960s near the Orval Abbey. Lac de Bairon was originally created in the 19th century as a reservoir for the Ardennes Canal, adding to its historical context.
Yes, many of the more developed lake areas offer amenities. The L'Eau d'Heure Lakes complex includes a hotel, holiday apartments, and various dining options. Lac de Nisramont has a tavern by the dam. Conchibois Lake features a cafeteria. In general, popular lakes are often situated near towns or villages where you can find cafes, pubs, and accommodation options.


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