Best lakes around Court-Saint-Étienne are primarily found in the surrounding Walloon Brabant province and the wider Wallonia region, as the municipality itself does not feature significant natural lakes. These areas offer diverse recreational opportunities centered around artificial lakes. The region's landscape includes forests and waterways, providing settings for outdoor activities.
Last updated: July 9, 2026
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Excellent quality hotel and restaurant
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One of a total of two birdwatching huts in this part of the nature reserve of the former sedimentation ponds of the Genappe sugar factory. This one offers by far the best view with a beautiful large pond. The lookout hut is accessible via a simple gate (everything else is fenced) and a few stairs. A wonderfully quiet place too and well maintained. The classic information boards with birds that you could observe are present. The surroundings are also beautiful with a lovely path that leads you to the access to the stairs to the hut and offers beautiful views since you are already at a height before you climb to the lookout hut.
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Le Château du Lac is best known today as a 5-star hotel. Events are also often organised there and that is why I know it from a professional long-gone past. But the building, whether you call it a castle or rather a glorified villa, it does have a fairly intense past. In the past, the mineral water of Genval was collected and bottled here. Together with the source of Bonne Fontaine, the Château du Lac was the true symbol of Genval-les-Eaux. The Etablissement des Eaux, as it was originally called, was built between 1905 and 1907 by the architect Julien Wendrickx, the future production director of the Compagnie Internationale des Eaux Minérales, to house the collection of sources and the bottling of the mineral water of Genval. After the First World War and the receivership of the companies that managed the Genval site, the castle became the property of an English company before being taken over by the Princes of Merode, who leased the facilities to Schweppes Belgium. The Belgian branch was then managed by John Martin, an English brewer based in Antwerp, who had been importing beers from Great Britain and Ireland to the continent since 1909, including the famous Guinness. He obtained the exclusive production rights for the Schweppes range, which he transferred to Genval in 1952 following the deterioration in the quality of Antwerp's drinking water, which was now pumped into the Albert Canal. Since the divestment of Schweppes in 1988, the John Martin group has further diversified its range, with speciality beers (Timmermans, Gordon, etc.), soft drinks (Orangina) and fruit juices (Looza). After the Schweppes factory moved to Rue du Cerf, the château, now owned by the Martin family, was converted into the five-star Château du Lac Source: https://www.parismatch.be/lifestyle/voyages/2020/08/23/le-lac-de-genval-et-ses-villas-2D3Q25DBTVANBFBV5WXJG3R2NI/
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The Genval lake is located in the Zilverbeek valley. The artificial lake is located for the most part on the territory of Overijse and was constructed by order of lawyer and businessman Gustave Smets - Mondez. The 18 ha lake was constructed in 1904 in an area with a series of spring-rich ponds and marshes through which the Zilverbeek or the Argentine flowed. The Zilverbeek still flows along the lake on the Overijse side. The area attracted many tourists from the very beginning. Around 1900, the urban development plans were also drawn up for the construction of the park on the Walloon side. Several impressive villas were built here that were reminiscent of copies of buildings from Versailles and monuments on the Swiss Lake Lucerne. On the Overijse side, there was less interest in the construction, which is why the slopes are less developed than on the Walloon side, where it was promoted as a spa. After the First World War, the lake was sold to John Martin (1886-1966), an English brewer from Antwerp. He would establish the Schweppes factory here (Belgian license) in the "Château du Lac" (until 1981). The lake is still in the hands of his heirs. On the Meerlaan there are still a few cottage-style villas overlooking the lake. These villas are depicted on various old postcards and are still recognizable today but have been heavily modified. Inventory of Immovable Heritage: Maleizen, https://id.erfgoed.net/themas/14294
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"La sirène du lac", as sculptor Michal named his statue, stands in the lake at the height of - of course - "Le Château du Lac", today a hotel. This siren apparently preferred an artificial lake to a river or sea, but people are said to sometimes think of eroticism when they are near water, and ultimately erotic song is the seductive weapon of sirens. We should not spoil the legacy of Hans Christian Andersen's "Lille Havfrue" by making comparisons, because that little mermaid grew up in the sea and has a statue in a harbour instead of a large lake that was created on behalf of a lawyer and businessman. The statue was commissioned by Jean Vanderbecken (RIP), former mayor of Rixensart for the MR, and fits in perfectly with the atmosphere of the "Château" and the "lake" as it has been developed on the French-speaking side.
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Genval Lake is an atmospheric spot with beautiful clear water, surrounded by stately old villas and shady trees. A picturesque path follows the banks, ideal for a walk along the rippling water.
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A beautiful stop along the Ravel L141. It is really enjoyable here. Herons, ducks and other birds galore in a beautiful setting. And with a bit of luck, the reflection on the water will make it all even more picturesque. I just couldn't get enough of it.
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The most popular lakes in the region are Lake Genval and the Eau d'Heure Lakes. Lake Genval is known for its Belle Époque villas and charming atmosphere, while the Eau d'Heure Lakes offer extensive water sports and diverse activities. Additionally, Lake Louvain-la-Neuve is a local favorite for walking and leisure.
Lake Genval offers a variety of recreational activities. You can rent pedal boats, rowing boats, kayaks, and paddleboards from the Genval Yacht Club. Unique experiences like floating BBQs and aperitif times are also available. It's also a great spot for country walks and enjoying the picturesque scenery.
The Eau d'Heure Lakes form Belgium's largest lake complex, offering an extensive range of water sports including kayaking, windsurfing, paddleboarding, waterskiing, and sailing. Beyond water activities, visitors can enjoy hiking, mountain biking, laser tag, and tree-top adventure courses at Natura Parc. The 'Red Crocodile' amphibious bus provides a unique tour experience on both land and water.
Yes, both Lake Genval and the Eau d'Heure Lakes offer family-friendly options. At Lake Genval, families can enjoy pedal boating and easy walks. The Eau d'Heure Lakes are particularly well-suited for families, with diverse activities like a water park, adventure courses, and the unique amphibious bus tour. Lake Louvain-la-Neuve also features a footpath with a Finnish track, ideal for family strolls.
The areas around the lakes offer various hiking opportunities. Near Lake Genval, you can explore country walks along the edge of the Sonian Forest. The Eau d'Heure Lakes boast around a hundred kilometers of trails, catering to all fitness levels. Additionally, the Réserve Naturelle Domaniale des Dicentraires at the Sucrerie de Genappe, which includes the Observatory and Biodiversity Observation Site, offers beautiful natural paths for walking and birdwatching.
Yes, there are several cycling routes available. For road cycling, you can find routes like the 'Sombreffe Castle – Corroy-le-Château Castle loop' from Court-Saint-Étienne. Gravel biking options include the 'Gravel Path by the River – Herculesdreef loop'. For touring bicycles, consider the 'Entrance to the Bois des Rêves – Lake Louvain-la-Neuve loop'. You can find more details on these routes in the Cycling around Court-Saint-Étienne, Gravel biking around Court-Saint-Étienne, and Road Cycling Routes around Court-Saint-Étienne guides.
Yes, Lake Genval is particularly rich in history, surrounded by opulent Belle Époque villas and featuring the prestigious Château du Lac hotel. A unique sight is The Little Mermaid of the Lake, a small bronze statue located in the waters of Lake Genval, inspired by its Copenhagen counterpart.
The region offers diverse natural landscapes. Lake Genval is nestled near the Sonian Forest, providing a green setting for walks. The Eau d'Heure Lakes are surrounded by extensive forests and grasslands, recognized as a 'European Destination of Excellence' for their sustainable tourism and beautiful bays. The Réserve Naturelle Domaniale des Dicentraires at the Sucrerie de Genappe is an important nature reserve, home to over 200 bird species and special vegetation communities.
The lakes are generally enjoyable throughout the warmer months, from spring to early autumn (April to October), when outdoor activities and water sports are in full swing. Summer offers the best conditions for swimming and boating, while spring and autumn provide pleasant temperatures for hiking and cycling amidst beautiful foliage.
Absolutely. The Réserve Naturelle Domaniale des Dicentraires at the Sucrerie de Genappe is a prime location for birdwatching. It features an Observatory and a Biodiversity Observation Site, where you can spot herons, ducks, and many other bird species in a peaceful setting. It's considered one of the most important ornithological sites in Wallonia.
While Court-Saint-Étienne itself does not have significant natural lakes, the nearby Lake Genval is relatively accessible from urban centers. For specific public transport routes and schedules to Lake Genval or the Eau d'Heure Lakes, it is recommended to check local public transport websites for the most up-to-date information.
Many outdoor areas around the lakes are dog-friendly, especially for walks and hikes. However, specific rules regarding dogs on beaches, in nature reserves, or on rental boats can vary. It's always best to check local signage or specific venue policies before visiting with your dog.


Still not found your perfect lake around Court-Saint-Étienne? Check out the guides of these regions to see even more beautiful places.