Lakes around Montigny-En-Ostrevent are primarily centered around the nearby Lac des Argales in Rieulay, located approximately 4.7 kilometers away. This area, a former mining site, has been transformed into a significant natural and recreational space. It features a unique landscape blending mineral and aquatic elements, offering diverse natural habitats. The region provides opportunities for outdoor activities and nature observation.
Last updated: July 6, 2026
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Beautiful walk on a magnificent site
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Hello, is it exclusively mountain biking or accessible by gravel please? It makes me want to do it anyway ☺️
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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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Strong exposure to the wind, beautiful view of the lake and the sunset
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The main destination is Étang des Argales in Rieulay, located about 4.7 kilometers away. This significant site, a transformed former mining area, offers a blend of natural beauty and recreational opportunities. Another notable spot is Parc Jacques Vernier, a large forest area with peaceful ponds.
Lac des Argales is unique due to its history as the largest flat spoil tip in the Nord-Pas-de-Calais mining basin. Its transformation into a vibrant natural space, with a distinctive landscape blending mineral and aquatic elements, offers a sense of exoticism. It's also a haven for biodiversity, particularly birds.
Yes, you can swim at Terril des Argales Beach, an artificial beach on Lac des Argales. The water quality is regularly assessed, making it a popular spot for relaxation and swimming during summer.
Absolutely. Lac des Argales is a designated nature reserve, home to over a hundred bird species, making it excellent for observing flora and fauna. Additionally, the Germignies Marsh and Spoil Heap is a rich natural environment with rare plant species and is frequented by the European nightjar during nesting season.
Climbing the terril at Lac des Argales offers a 360-degree panoramic view of the site and its surroundings, including distant landmarks like the abbatial tower of Saint-Amand-les-Eaux. You'll see a unique landscape shaped by its industrial past and natural renaturation.
Lac des Argales provides a wide array of activities including walking, hiking, cycling (VTT), and horseback riding on designated trails. On a limited part of the lake, you can also enjoy fishing, kayaking, canoeing, sailing, and paddleboarding. There are also dedicated paths for running and an outdoor street workout area.
Yes, Lac des Argales features a 4 km circuit around the lake and terril designed to be accessible to all, including those with walking difficulties. It has gentle slopes and benches along the path, making it suitable for a leisurely stroll.
Yes, the area around Montigny-En-Ostrevent offers several cycling routes that pass by or near the lakes. For example, you can find routes like the 'Argalles spoil tip and pond. – Étang des Argales loop' for touring bicycles, or various road cycling routes. You can explore more options in the Cycling around Montigny-En-Ostrevent guide.
Families will find plenty to do, especially at Lac des Argales, which offers an artificial beach, playgrounds, and picnic areas. The accessible 4 km circuit is perfect for family walks. Parc Jacques Vernier also provides a tranquil setting with manicured gardens, winding paths, and a peaceful pond for relaxation and family outings.
Lac des Argales is a remarkable example of ecological transformation. It was once the largest flat spoil tip (terril) in the Nord-Pas-de-Calais mining basin. The immense weight of the spoil tip caused it to sink, leading to the emergence of the lake and its subsequent renaturation into a rich natural and recreational area.
Visitors appreciate the unique blend of natural beauty and industrial heritage, especially at Lac des Argales. Many enjoy the beautiful views, the opportunity for various outdoor activities like mountain biking and walking, and the peaceful atmosphere for rehydrating or taking a break. The transformation of the former mining site into a vibrant natural space is often highlighted as a significant draw.
Yes, there are several running trails in the vicinity that incorporate the lake areas. For instance, the 'Lac des Argales – Friendly meeting loop' is a popular option. You can find more detailed information and routes in the Running Trails around Montigny-En-Ostrevent guide.


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