Best lakes around Fresnoy-En-Thelle offer diverse natural and recreational experiences within the Oise department and Picardy region. While Fresnoy-En-Thelle itself does not feature major lakes, the surrounding area provides several notable options for water-based activities and relaxation. These include forest ponds, former quarry lakes, and larger recreational areas. The region's lakes are characterized by their natural settings, often within forests or regional parks, providing opportunities for walking, cycling, and observing local wildlife.
Last updated: July 7, 2026
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What is to be remembered from this route is the passage through the Carnelle forest. However, there are too many roads on the Isle Adam and along the Oise. No particular difficulty.
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The Trois Sources pond is a beautiful place built on a former quarry which breathes nature and where you can observe many birds, moorhens, swans, ducks and barnacle geese.
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pretty lake hidden in the middle of the forest
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a small walk full of charm, beautiful encounter with not shy horses! Gunshot in the forest of Gouvieux. Same shooting range. Anyway pond, very passable path. To do again!
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The Toutvoie ponds are a peaceful, pleasant and friendly place. There are barbecue facilities as well as very nice paths for walking. Fishing and swimming are prohibited!
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A set of beautiful bumps and small springboards made with wooden logs allow those who wish to do a few jumps!
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Lac Bleu is one of the two bodies of water in the Carnelle forest. On sunny days, its name takes on its full meaning. But there is another reason for the name of this lake from ancient quarries. The rock at the bottom is a mixture of gypsum and marl. The color is changing due to algae, but originally it is deep blue. Around the lake, one can appreciate oaks, beeches and chestnuts. A feast for the eye!
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The area around Fresnoy-En-Thelle offers a variety of lakes, including peaceful forest ponds like Le Petit Étang de Carnelle and The Blue Lake of Carnelle, which are former marl quarries. You'll also find lakes built on former quarries such as Étang des Trois Sources, and larger recreational water bodies like the Plan d'eau du Canada near Beauvais and the Base de loisirs de Saint-Leu-d'Esserent.
Yes, several lakes offer excellent family activities. The Base de loisirs de Saint-Leu-d'Esserent, about 20-25 km away, provides supervised swimming, canoeing, kayaking, accrobranche, an Aquaslide park, and a miniature farm. The Plan d'eau du Canada in Beauvais features a large sandy beach for swimming, paddleboarding, kayaking, and playgrounds. For a resort-style experience, Lac d'Ailette (further afield) has a Center Parcs with a water park and numerous sports.
For tranquil walks and nature observation, the Blue Lake of Carnelle and Le Petit Étang de Carnelle are ideal, set within the Carnelle forest with beautiful trees. The Étangs de Commelles, located in the Chantilly forest, are a protected natural site perfect for walking, cycling, and birdwatching, especially around the Château de la Reine Blanche. Étang des Trois Sources is also known for birdwatching.
Absolutely. The Étangs de Commelles offer shaded paths suitable for cycling. The Plan d'eau du Canada has marked trails for mountain biking. For more extensive cycling options, you can explore routes like 'The Commelle ponds – The Coye-la-Forêt washhouse loop' for gravel biking or 'Chantilly Castle – Château de Boran-sur-Oise loop' for road cycling. You can find more details on these and other routes in the Gravel biking around Fresnoy-En-Thelle and Road Cycling Routes around Fresnoy-En-Thelle guides.
Yes, fishing is a popular activity at several lakes. Le Petit Étang de Carnelle is a peaceful spot where you can observe fishermen. The Plan d'eau du Canada also offers fishing opportunities. The Mello Ponds Singletrack runs along the pond of Saint Vaast Lès Mello, which is a known spot for anglers.
The lakes are enjoyable year-round, but each season offers a unique experience. Spring and summer are ideal for swimming and water sports at places like the Plan d'eau du Canada and Base de loisirs de Saint-Leu-d'Esserent. Autumn is particularly captivating at the Étangs de Commelles due to the vibrant colors of the surrounding forest. Birdwatching is excellent in spring, especially in March when frogs and toads gather at Commelles.
Many natural areas and forest trails around the lakes are generally dog-friendly, provided dogs are kept on a leash. The forest paths around the Carnelle lakes (Le Petit Étang de Carnelle, The Blue Lake of Carnelle) and the Étangs de Commelles are popular for walks with dogs. Always check local regulations for specific areas.
Near the Étangs de Commelles, you can admire the charming Château de la Reine Blanche, a neo-Gothic hunting lodge. While not directly on a lake, the nearby Chantilly Castle is a significant historical site that can be combined with a visit to the Commelles Ponds. The region's history is often tied to its forests and former quarrying activities, which shaped many of the lakes.
Wild swimming is generally not recommended or permitted in many natural ponds due to safety reasons (e.g., depth, water quality, hidden obstacles). However, designated swimming areas with supervision are available. The Plan d'eau du Canada in Beauvais and the Base de loisirs de Saint-Leu-d'Esserent both offer large sandy beaches with supervised swimming during the summer season.
The Étangs de Commelles have a crêperie on site and picnic areas. The Plan d'eau du Canada and the Base de loisirs de Saint-Leu-d'Esserent are equipped with facilities that often include snack bars or restaurants, especially during peak season. For more varied options, nearby towns like Beauvais (for Plan d'eau du Canada) or Saint-Leu-d'Esserent (for its leisure base) offer cafes and restaurants.
The Blue Lake of Carnelle is unique for its striking deep blue color, which comes from the gypsum and marl rock at its bottom. This forest lake, one of two in the Carnelle forest, is surrounded by beautiful oaks, beeches, and chestnut trees, making it a picturesque spot for nature lovers.
The Étangs de Toutevoie offer a peaceful and pleasant environment with barbecue facilities and nice paths for walking. While fishing and swimming are prohibited, it's a great spot for a relaxed stroll. It also features some mountain biking elements like bumps and small springboards made with wooden logs.


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