Best lakes around Lannoy are found in a region of Northern France that features natural scenery and diverse landscapes. While not characterized by large natural lakes, the area offers several smaller bodies of water and filtration ponds that serve as natural attractions. These sites provide opportunities for outdoor activities and observation of local flora and fauna. The natural landscape around Lannoy includes forests and parks, contributing to its appeal for those seeking outdoor experiences.
Last updated: June 20, 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 Lannoy area is not characterized by large natural lakes. Instead, you'll find smaller bodies of water, including filtration ponds and man-made lakes within parks. These offer pleasant settings for walks and observing local flora and fauna.
Yes, several spots are suitable for families. Heron Lake, Heron Park, and Spanish Lake are all categorized as family-friendly. The Leers Filtration Ponds also offer a peaceful nature reserve perfect for a relaxing walk with the family.
Yes, dogs are generally welcome, but policies vary. For example, at the 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.
You can enjoy walks around Heron Lake, which features a nice gravel path. Heron Park also offers great space for walking. For more structured routes, consider the running trails around Lannoy, such as the 'Chemin des lacs loop from Hem' or the 'Lac du Héron loop from Toufflers'. You can find more details on the Running Trails around Lannoy guide.
Yes, the area offers several cycling opportunities. The Tour of Lac du Héron is a popular lake trail suitable for riding, though it can be busy with walkers during peak times. You can also explore routes like the 'Heron Lake – Greenway Hem-Anstaing loop' for gravel biking or the 'Heron Lake loop from Hem' for general cycling. More routes are available in the Gravel biking around Lannoy guide and the Cycling around Lannoy guide.
Yes, Heron Park is noted as having parking facilities, making it a convenient spot to access the lake and surrounding areas.
The lakes are popular when the weather is nice, especially on weekends and Sundays. To avoid crowds, particularly if you plan to ride, consider visiting during off-peak hours or early/late in the day. Winter walks can also be pleasant, offering a different atmosphere.
Beyond the lakes and filtration ponds, the region around Lannoy features natural scenery including forests and parks. These contribute to the area's appeal for outdoor enthusiasts seeking diverse natural settings.
Visitors appreciate the opportunities for fresh air and walking. Many enjoy the gravel paths around spots like Heron Lake and the peaceful atmosphere of places like the Leers Filtration Ponds, which are also noted for their natural beauty and bird species.
Walking times vary by location. For instance, a full loop around Heron Lake on its gravel path can be completed in a reasonable amount of time, making it a popular circuit. The Leers Filtration Ponds offer a 5-hectare nature reserve, providing a relaxing walk that can be tailored to your desired duration.
Many of the paths, such as the gravel path around Heron Lake and the trails within Heron Park, are generally well-maintained and offer relatively easy access for walking. However, specific accessibility features like paved surfaces or ramps may vary by location.
While the guide focuses on the natural attractions, the lakes are situated in a developed region of Northern France. You will likely find cafes, pubs, and accommodation options in the nearby towns and villages surrounding Lannoy, though not necessarily directly adjacent to every lake or pond.


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