Best lakes around Guesnain are often found in areas that have undergone significant environmental transformation, particularly from former mining sites. The region, situated in the Nord-Pas-de-Calais basin, features a unique landscape where industrial heritage has given way to thriving natural spaces. These areas now offer diverse ecosystems, recreational opportunities, and historical significance. Visitors can explore a variety of lakes, from large former spoil tips to serene marshes and ponds.
Last updated: May 9, 2026
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Beautiful walk on a magnificent site
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In terms of nature, the main attraction of Oisy-le-Verger is undoubtedly its marshes. A beautiful environment for mountain biking among ponds, woods, peat, poplar groves and alluvial plains.
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The Argales de Rieulay slag heap, the largest in the region (140 ha), has long since closed its mining page. A new story has been unfolding for several years now. That of a successful reconversion.
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Artificial beach on the body of water
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Passage over a bridge then at water level. Cool to do.
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The Jacques Vernier Park in Douai is a green space located in the heart of the city. It offers visitors an oasis of tranquility with its manicured gardens, winding paths and peaceful pond. This park is a place of relaxation appreciated by locals and tourists, offering activities such as walking, picnicking and nature contemplation.
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Today, walk to Jacques Vernier Douai Park. The park is huge, with more than 40 hectares of greenery. There are trees, flowers, lawns, ponds... It's an ideal place to recharge your batteries and relax.
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Magnificent setting for running and doing a bit of elevation gain!
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The most notable lake is Étang des Argales in Rieulay, a remarkable former mining site transformed into a vibrant natural and leisure area. It's recognized as a UNESCO World Heritage site. Other natural areas of interest include the Oisy-le-Verger Marshes and the serene View of the Haut Pont marsh.
At Étang des Argales, you'll find a unique ecosystem with atypical vegetation and exceptional fauna, including around a hundred different bird species, lizards, and amphibians. You can also climb the terril (spoil tip) for 360-degree panoramic views of the site and its surroundings.
Yes, Étang des Argales is very family-friendly, offering an artificial beach, walking paths suitable for all ages, and opportunities for children to discover various birds and enjoy the outdoors. The site also hosts seasonal events like concerts and markets.
Near the lakes, you can enjoy a variety of outdoor activities. For running, explore trails like the 'Bois de Lewarde loop' or 'The Erchin Cave' (see Running Trails around Guesnain). Cycling options include the 'Towpath of the Scarpe' or the 'Argalles spoil tip and pond' loop (see Cycling around Guesnain). Mountain biking is popular with routes such as 'La Fabriq'' or 'Argales Pond' (see MTB Trails around Guesnain).
Yes, Étang des Argales features an artificial beach where swimming is permitted. The water quality is regularly monitored and generally good, making it a popular spot during summer.
While specific public transport details vary, Étang des Argales is a well-developed leisure area, and parking facilities are generally available for visitors. It's advisable to check local transport options for the most direct routes to specific sites.
The lakes are enjoyable year-round, but the best time to visit depends on your preferred activities. Summer is ideal for swimming at Étang des Argales and enjoying seasonal events. Spring and autumn offer pleasant temperatures for walking, cycling, and nature observation, especially for birdwatching.
Yes, the region's lakes, particularly Étang des Argales, are deeply connected to the area's industrial heritage. The site is located on the largest flat spoil tip in the Nord-Pas-de-Calais mining basin and is recognized as a UNESCO World Heritage site, showcasing a successful reconversion of industrial land into a natural space.
Visitors appreciate the unique blend of industrial heritage transformed into thriving natural spaces. The rich biodiversity, diverse outdoor activities, and the serene environment for walks and nature observation are frequently highlighted. The artificial beach at Terril des Argales Beach is also a popular feature.
Absolutely. Étang des Argales is an excellent spot for birdwatching, boasting around a hundred different bird species. There are often kiosks around the marsh to facilitate observation of the landscapes and wildlife.
Many natural areas and trails around the lakes are dog-friendly, but it's always recommended to keep dogs on a leash to protect local wildlife and ensure a pleasant experience for all visitors. Specific rules may vary by location, so look for signage upon arrival.
Yes, Étang des Argales offers numerous paths around the lake and across the broader site, with routes varying in length and difficulty, many suitable for easy walks. The View of the Haut Pont marsh also provides a serene natural setting for walks.


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