Best lakes around Leers are found in a region characterized by its network of waterways and natural areas. While Leers itself is traversed by the Roubaix Canal, a significant man-made waterway, the surrounding area offers both natural lakes and engineered water features. These aquatic environments provide opportunities for outdoor recreation and appreciating local heritage. The region's landscape includes both natural lake formations and functional filtration ponds that have become nature reserves.
Last updated: June 22, 2026
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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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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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HERE / Created in 1927, on the site of a former disused cemetery, Parc Clemenceau is the work of landscaper Edouard André. This professor at the National School of Horticulture in Versailles kept the existing chestnut trees in order to create a "screen" in front of the unsightly factories present at the time in the district. Rockeries from the Palais Vaissier and the pillars of the Château Masurel were even reused to develop the park! ELSEWHERE / United Kingdom: London's public parks and gardens With its "swan lake" and its winding walks, Parc Clemenceau has a very British feel that recalls the large parks of the English capital: Saint James Park, Hyde Park or Regent Park. "Green lungs" once created to clean up very dense industrial cities and allow residents to get some fresh air and show off. Author: TOURCOING TOURISME
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Parc Georges Clemenceau is a beautiful park located in the heart of the Belencontre area. It is the second largest park in the city and covers approximately 11 hectares. Among other things, you will find the Lac aux Cygnes: A charming pond with waterfalls and fountains that create a peaceful and picturesque atmosphere.
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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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Not a bad circuit but prefer off-peak hours or early or late I noticed a lot fewer people in the paths of the woods while it was almost crowded around the Heron Lake 👉😬😬
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The most popular spots include Heron Lake, known for its gravel path, and the Roubaix Canal, which is a significant local heritage site. Visitors also appreciate the unique Leers Filtration Ponds for nature observation.
Yes, several areas are suitable for families. Spanish Lake offers easy access for family outings. The Leers Filtration Ponds are also a peaceful 5-hectare nature reserve perfect for a relaxing walk with family. Additionally, Swan Lake in Parc Georges Clemenceau is a charming pond with waterfalls and fountains, ideal for families.
You can enjoy various activities such as hiking and cycling along the banks of the Roubaix Canal. Heron Lake has a gravel path popular for walking. For more structured routes, you can find numerous cycling routes and running trails around Leers that often incorporate these water features.
At the Leers Filtration Ponds, dogs must be kept on a leash on the paths to protect the environment and wildlife. They are not permitted in the winding sections of the ponds themselves. It's always best to check local regulations for other specific areas.
To avoid crowds, especially at popular spots like Heron Lake, it's advisable to visit during off-peak hours or weekdays, particularly when the weather is nice. The region's waterways offer pleasant experiences throughout the warmer months for walking and cycling.
The Leers Filtration Ponds are a unique man-made natural space. Originally built for water filtration for the Roubaix Canal, this 5-hectare reserve uses phytoremediation, where plants like yellow iris and purple loosestrife naturally purify water. It's now home to around 30 bird species and even smooth newts, offering a peaceful spot for nature observation.
Yes, the banks of the Roubaix Canal are popular for hiking and cycling. Heron Lake features a gravel path that is suitable for walking. Spanish Lake also offers easy access and is suitable for gravel biking or mountain biking.
The Roubaix Canal, completed in 1893, is a significant part of the local heritage. It's part of a larger network connecting the Deûle to the Scheldt, bridging France and Belgium. Its banks are a valued local heritage site, popular for various leisure activities, and its restoration has enhanced its appeal.
The Leers Filtration Ponds are a haven for wildlife. You can observe around 30 bird species, including coots, Mediterranean gulls, and reed buntings. If you're lucky and observant, you might even spot a smooth newt swimming in the ponds.
Visitors suggest avoiding Heron Lake on weekends or when the weather is particularly nice, as it can get quite crowded. It's recommended to visit during off-peak hours or early/late in the day for a more peaceful experience on its gravel path.
You can explore various road cycling routes around Leers, including options like the 'Espierres Canal – Smooth canal section loop from Leers' or the 'Spiere Valley Route'. These routes often incorporate scenic views of the local waterways and countryside.


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