Best lakes around Wattrelos are situated in a region known for its blend of urban proximity and natural landscapes. This area offers various outdoor opportunities, including accessible lakes and green spaces. The local environment features a mix of forests, meadows, and water features, providing diverse settings for outdoor activities. Wattrelos and its surroundings are characterized by natural reserves and recreational areas, often developed from former industrial or agricultural sites.
Last updated: May 25, 2026
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The entire area, 86 hectares in size, is owned and managed by the city of Kortrijk. It is located at the highest point of Kortrijk. The Marionetten urban green space itself is 57 hectares. The nature reserve was developed from 1996 onwards on the former grounds of nv Dakpannenfabriek Pottelberg, which received a permit in the 1950s to extract brown and blue clay here. After the clay extraction ceased, the pit was filled with waste. In 1996, the pit was covered, after which it was laid out as a nature reserve. The unfilled clay pit forms the pond. From 2008 onwards, this part forms the central part of the Marionetten urban green space: between Canaertstraat and Bosstraat. A RUP (Urban Development Plan) was drawn up for the entire zone (86 ha) and an implementation plan was drawn up, which was carried out step by step and completed in 2004. As of today, the Marionetten urban green space has not yet been fully acquired; parts still need to be purchased or are subject to an agricultural lease. The previous history of the site now creates differences in elevation. At the highest point stands the large Libel, containing information about the area, fauna, and flora. A staircase has been built on the side of the pond. Source: natuurpunt.be
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The filter ponds in Leers were built to supply water to the Roubaix Canal, which is located nearby. Their primary function is to purify some of the water from the Grimonpont wastewater treatment plant. This plant initially filters 75% of the water; the ponds then process the remaining 25%. This final filtration takes seven days. During this process, the water flows through several ponds, moving from one to the other by gravity. This filtration technique is called phytoremediation: the water is naturally purified by algae, plants, and microorganisms that thrive in these ponds. In Leers, plants such as yellow iris and purple loosestrife, among others, play this purifying role. After seven days of filtration, the water flows into a final 9,000 m² basin. At this stage, it is perfectly purified and of very high quality. This final basin, known as the "storage basin," is the final step before the water is conveyed to the canal. The Leers filter ponds, formerly a landfill, are now a peaceful 5-hectare nature reserve, perfect for a relaxing walk, alone or with the family. The area is home to around thirty bird species, including the coot, the Mediterranean gull, and the reed bunting. If you look closely, you might even be lucky enough to spot a smooth newt swimming in the ponds, searching for small invertebrates to feed on. To protect the environment and wildlife, dogs must be kept on a leash on the paths and are not permitted in the winding sections of the ponds. Source: enm.lillemetropole.fr
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The Parc du Héron covers 110 hectares, a significant portion of which is covered by water: the Lac du Héron and the Marque River. Approximately 70% of the area is designated as a nature reserve.
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Just before Heron Park, a pretty little lake with easy access. Can be done on a gravel bike or mountain bike. There are quite a few hikers on weekends.
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A beautiful place to run between lake and forest. It is a haven of peace in the middle of the Lille metropolis.
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Beautiful nature and fun to cycle
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Yes, several lakes around Wattrelos are ideal for families. Heron Lake is accessible to all and offers a natural area with rich biodiversity. The Green Area De Marionetten is an ecological recreational nature area with forest edges, water features, and open spaces, perfect for families to get fresh air and explore. Leers Filtration Ponds also provides a peaceful setting for family walks.
The lakes around Wattrelos offer a diverse range of natural features. You'll find a mix of forests, meadows, and various water features. For example, Heron Lake is a 110-hectare natural area known for its rich biodiversity, including many bird and plant species. The Leers Filtration Ponds, a 5-hectare nature reserve, is home to around 30 bird species and features phytoremediation, a natural water purification process.
Yes, there are easy hiking opportunities. Heron Lake features a nice gravel path suitable for walking. For more options, you can explore the easy cycling routes that often follow canal towpaths, which are also suitable for walking, such as those found in the Cycling around Wattrelos guide.
Yes, you can walk your dog at some of the lakes, but always keep them on a leash. At Leers Filtration Ponds, dogs must be kept on a leash on the paths and are not permitted in the winding sections of the ponds to protect the environment and wildlife.
The lakes around Wattrelos can be enjoyed year-round. However, if you prefer quieter visits, it's advisable to avoid weekends or sunny weather, as popular spots like Heron Lake can become quite crowded. Visiting during off-peak hours, early mornings, or late afternoons can offer a more peaceful experience.
While popular spots like Heron Lake can get busy, the Leers Filtration Ponds offer a peaceful 5-hectare nature reserve, often less crowded, ideal for a relaxing walk. The Green Area De Marionetten also provides various parts of the landscape, including hidden corners, for a more secluded experience.
Beyond walking and enjoying nature, the area around Wattrelos offers various outdoor activities. You can find numerous cycling routes, including easy touring bicycle paths along canals, as detailed in the Cycling around Wattrelos guide. There are also dedicated MTB Trails around Wattrelos and Gravel biking routes, some of which pass near the lakes.
The exact time to walk around Heron Lake depends on your pace and the specific path taken, as it's a 110-hectare natural area. Visitors mention a 'nice gravel path to walk around' and a 'circuit'. Expect a pleasant walk that can take an hour or more to fully appreciate the surroundings.
The provided information does not specifically mention cafes directly adjacent to the lakes. However, given Wattrelos's blend of urban proximity and natural landscapes, you are likely to find facilities in nearby towns or villages. It's advisable to check local listings for specific amenities before your visit.
The Green Area De Marionetten is unique as an ecological recreational nature area. It's designed to be attractive and accessible, offering a diverse landscape with forest edges, water features, open spaces, hidden corners, a play hill, and meadows. It provides a natural escape right near the city center, ideal for relaxation and recreation.
The Leers Filtration Ponds were built to purify water for the Roubaix Canal. They use a natural filtration technique called phytoremediation, where water is purified by algae, plants like yellow iris and purple loosestrife, and microorganisms. This process takes seven days, resulting in high-quality water before it flows into the canal. It's also a peaceful 5-hectare nature reserve.
For hiking around the lakes, comfortable walking shoes are essential, especially if you plan to explore gravel paths or trails. Layered clothing is recommended to adapt to changing weather conditions. Depending on the season, consider waterproof outerwear and sun protection. Given the natural settings, insect repellent might also be useful.


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