Lakes around Chaumes-En-Retz include various *étangs* and *plans d'eau*, offering diverse natural settings. This area features both large natural reserves and smaller recreational ponds. Notable natural attractions include Lac de Grand Lieu, recognized as a significant natural lake and ornithological reserve. The region provides opportunities for nature observation, hiking, and family-friendly activities.
Last updated: June 26, 2026
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Excellent mountain bike trails along the banks of these two magnificent lakes. Caution ⚠️ Sometimes flooded in winter!
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Not a very difficult circuit with beautiful passages on the Gatineaux and Gros Caillou ponds. The starting point can be from the charming port of St Michel chef chef
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Trails of your choice rolling or in cross mode
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Former limestone quarry now transformed into a protected natural area with a pond in the northern part and a wetland in the southern part. Important birdlife. The paths and trails are well maintained, mainly for mountain biking and gravel.
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It is indeed very nice to do with the family. This is Pornic Aventure. It's opposite.
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Quiet and cycle park, crossed by the La Blanche river, which forms a pond here. Picnic tables, toilets. Perfect for a short break
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I was able to follow the east bank on a gravel bike without a problem. The zipline that flies over the pond looks particularly nice.
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Body of water very practical when the beach is at low tide
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For diverse outdoor activities, consider Val Saint-Martin Pond, known for gravel biking and a zipline. Gatineaux and Gros Caillou Ponds offer excellent mountain bike trails with scenic passages. For a calm, natural setting, Maurice Giros Pond Beach is ideal, especially when the sea is at low tide.
Yes, several lakes are perfect for families. Chéméré Pond (also known as Plan d'eau de La Blanche) is a popular recreational area with a playground, pumptrack, skate park, and an accessible 1 km path. L'étang de la Sicaudais also offers a tranquil setting with a park, picnic area, and playground. Lac de la Chausselière, associated with a campsite, provides extensive family entertainment, including multi-sports, water sports, and a heated pool.
Lac de Grand Lieu is a significant natural landmark and the second-largest ornithological reserve in France, making it a crucial stopover for 270 bird species. While direct access to the lake is restricted, viewpoints at Passay and Pierre-Aigüe offer impressive vistas. The Maison du Lac de Grand-Lieu and an ornithological observatory provide deeper insights into its rich biodiversity. The Étang du Pont Mahé / Étang du Pont de Fer area, part of a Natura 2000 site, is also recognized for its rich biodiversity, including aquatic vegetation, reed beds, and Atlantic moors.
You'll find various trails. Around Chéméré Pond, there's an easy 1 km path and a longer 7.8 km trail called 'Les Chênes'. L'étang de la Sicaudais offers the 'Circuit de la Sicaudais', approximately 13 km long. For more options, explore the hiking routes around Chaumes-en-Retz, which include trails like the 'Prépaud Trail loop from La Sicaudais'.
Absolutely. Val Saint-Martin Pond is suitable for gravel biking, and Gatineaux and Gros Caillou Ponds are known for their excellent mountain bike trails. Lac de Grand Lieu also has numerous cycling routes around its perimeter. You can find more cycling adventures in the cycling guides for Chaumes-en-Retz.
Swimming conditions vary by lake. Direct swimming is generally prohibited in Lac de Grand Lieu due to its protected status, but activities like canoeing and paddleboarding are possible on its connected rivers. Lac de la Chausselière offers water sports like canoeing and light sailing during summer. For a calm, protected body of water, Maurice Giros Pond Beach is a good option, especially at low tide.
Yes, fishing is a popular activity at both L'étang de Chéméré (Plan d'eau de La Blanche) and L'étang de la Sicaudais, with free access and no permit required. Lac de la Chausselière also boasts private fishing ponds.
L'étang de Chéméré, also known as Chéméré Pond, is well-equipped for recreation. It features a playground, pumptrack, skate park, pétanque, football, and ping-pong. There are also expansive lawns for picnics and an easily accessible path around the pond.
The atmosphere around the lakes changes beautifully with the seasons. Summer is ideal for water sports and family activities at places like Lac de la Chausselière and Maurice Giros Pond Beach, where waters can be warm. For birdwatching at Lac de Grand Lieu, winter is significant as it becomes a crucial stopover for migratory birds. Hiking and cycling can be enjoyed throughout the warmer months, though some trails, like those near Gatineaux and Gros Caillou Ponds, can be flooded in winter.
Yes, L'étang de Chéméré (Plan d'eau de La Blanche) offers a flat, easily accessible path approximately 1 km long that encircles the pond, making it suitable for strollers and people with reduced mobility.
This area is unique for being part of a larger Natura 2000 protected site, featuring impressive dunes and marshes. It's recognized for its rich biodiversity, including varied aquatic vegetation, reed beds, and Atlantic moors. The nearby Plage de Pont Mahé is known for its warm waters and is popular for kitesurfing and windsurfing.
Yes, the region offers several running opportunities. For instance, you can find running loops starting from La Sicaudais or Chéméré. Explore the Running Trails around Chaumes-en-Retz guide for detailed routes and distances.


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