Best lakes around Montlhéry are primarily retention basins and ornamental water features within the Essonne department of France. Montlhéry itself features local parks with water elements designed for aesthetic appeal and family enjoyment. For expansive natural lakes suitable for typical lake activities, options are generally found further afield. The region offers various water bodies, including several retention basins along the Orge river.
Last updated: May 8, 2026
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Late afternoon bike ride: Magnificent track and path...in dry weather.
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The Carouge basin is the point of convergence of the Orge, Blutin, Salmouille and Boële. The basin was dug in the 1970s to extract materials for road construction, and also to manage the floods of the Orge. Here you can see many species of birds, such as seagulls, cormorants and ringed plovers depending on the season. The path along the basin is safe and flat.
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The Saint-Michel-sur-Orge basin is a peaceful place surrounded by greenery, ideal for a walk or a relaxing break in the heart of nature. Located on the edge of the city, this basin offers a pleasant setting with its shaded banks. The paths that surround it allow you to appreciate the tranquility of the place and observe the local fauna, in particular the birds that come to land on the water.
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After having traveled about twenty kilometers along the barley starting from Morsang sur orge, this lake offered us a magnificent landscape, hidden between the trees. It was difficult to leave this place to come back home!
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This water park is only the culmination of the Ollainville water treatment plant known as the Moulin Neuf, on a former industrial site that had been cleaned up and rehabilitated which had replaced the old mill. The site is next to the Syndicat de l'Orge, de la Rémarde et de la Prédecelle, which does everything in its power to ensure that the paths and routes in the Barley basin are practicable and maintained.
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It is one of the many Orge retention basins between Breuillet (Port Sud basin), Egly (Trévoix mill basin), Brétigny (Petit Paris and Carouge basins) and Longpont-sur-Orge (Parc de Lormoy) and beyond. These pools, very well maintained and offering exceptional flora and fauna, make it possible to make loops of more than twenty kilometers quite easily (as long as one remains in the valley). A set of exotic and relaxing pools.
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A large body of restful and calm water. It is possible to go around on a cycle path.
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The water bodies around Montlhéry are primarily retention basins and ornamental features, rather than large natural recreational lakes. These basins, like the Carouge Basin, were often created for flood management and now offer pleasant settings for walks and observing local flora and fauna. Montlhéry's local parks also feature water elements designed for aesthetic appeal and family enjoyment.
Yes, visitors often enjoy the Carouge Basin, known for its role in flood management and as a convergence point for several rivers, offering opportunities to spot various bird species. Another popular spot is Trévoix Pond, a large, calm body of water with a cycle path around its perimeter.
The water bodies directly around Montlhéry, such as the retention basins and ornamental features, are generally not suitable or designated for swimming or boating. For recreational lake activities like swimming or boating, you would typically need to travel further afield to regions known for larger natural or artificial lakes in France.
Yes, many of the lakes and basins offer paths for walking and cycling. For instance, Trévoix Pond has a cycle path around its perimeter, and the path along the Carouge Basin is described as safe and flat. These paths are well-maintained and allow for easy exploration of the local environment.
The lakes and basins, particularly the Carouge Basin and Saint-Michel-sur-Orge basin, are known for their local fauna. You can often spot various bird species, such as seagulls, cormorants, and ringed plovers, depending on the season. The tranquil settings provide good opportunities for birdwatching.
Yes, several lakes and their surrounding areas are suitable for families and picnics. Lac d'Olainville, nestled within a forest, offers a tranquil and scenic setting. The Trévoix Pond is also considered family-friendly, and the local parks in Montlhéry, like Parc de la Souche, feature water elements and green spaces ideal for family enjoyment and picnics.
Beyond walking and cycling directly around the lakes, the area offers various outdoor activities. You can find numerous routes for cycling, gravel biking, and running. Many routes incorporate the lake areas, such as the 'Wooden statue – Trévoix Pond loop' for cycling or the 'Carouge Basin – Trévoix Pond loop' for gravel biking.
Yes, some areas are noted for their accessibility. The path along the Carouge Basin is described as safe and flat, making it suitable for wheelchairs and strollers. Generally, the well-maintained paths around the retention basins are designed for easy access.
The lakes and basins can be enjoyed throughout the year. Spring and autumn offer pleasant temperatures for walking and cycling, with autumn providing scenic foliage around areas like Lac d'Olainville. Summer is also popular for outdoor activities, while winter can offer a peaceful, serene atmosphere.
Yes, the lakes themselves are often the main natural features. Trévoix Pond is highlighted as a viewpoint, offering expansive views of calm water. Lac d'Olainville is notable for its scenic landscape hidden among trees, providing a tranquil setting.
Visitors appreciate the peaceful and tranquil settings offered by these water bodies. Many enjoy the well-maintained paths for walking and cycling, the opportunities for observing local flora and fauna, and the scenic landscapes, especially around places like Lac d'Olainville. The overall experience is often described as relaxing and a great way to connect with nature.
While not ancient, some of these water bodies have a history related to regional development. For example, the Carouge Basin was dug in the 1970s for flood management and material extraction. The Étang du Moulin Neuf is located on a former industrial site that was cleaned up and rehabilitated, replacing an old mill.


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