Best natural monuments around La Roche-Sur-Yon include diverse landscapes from forests to wetlands and rivers. The region features significant natural areas like the Forêt d'Aizenay, a 420-hectare forest, and the nearby Marais Poitevin Regional Natural Park, a vast wetland. The Sèvre Nantaise river also contributes to the area's natural appeal. These sites offer varied ecosystems and opportunities for outdoor exploration.
Last updated: May 20, 2026
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Bultière Lake is an artificial reservoir. The Bultière Dam was built in 1994. It is located in the commune of Chavagne en paillers. It supplies the drinking water network. Its surface area is 72 hectares and contains 5.2 million cubic meters of water. It is possible to walk around the lake via a 15-km trail. This lake, with its exceptionally rich fish population, awaits you with almost every type of fish (perch, pike, zander, catfish, carp, roach, bream, tench, etc.). You can go predator fishing from the shore or from a boat to catch zander, pike, and catfish. It is, of course, possible to still fish for roach, bleak, or bream. Carp are also present in this lake. A night carp fishing route located on the right bank in the Maurosière sector will delight those who love a good catch.
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Beautiful pond surrounded by magnificent trees. Plenty of benches that encourage rest or contemplation. A welcome little patch of greenery after crossing the vineyard in the full sun. A trail allows you to go around the natural site, but I didn't have time to try it. Note that the path that connects La Fauvette to La Pontereau is very smooth and magnificent.
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This vast body of water, popular for fishing and nature walks, offers an ideal setting for a bike ride along its banks. The trails surrounding the lake reveal superb views of the calm water and the surrounding hills.
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Lake Bultière is an artificial water reservoir. The Bultière dam was built in 1994. It is located in the town of Chavagne en strawlers. It supplies the drinking water network. Its surface area is 72 hectares containing 5.2 million m3 of water. it is possible to go around the lake via a 15 km path. This lake of exceptional fish wealth awaits you with almost all kinds of fish (perch, pike, zander, catfish, carp, roach, bream, tench, etc.). You can practice predator fishing from the shore or with a boat to catch zander or pike, catfish.
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Huge block placed in the river, its probably druidic origin gives it a wonderful character conducive to many legends. Rabelais made it the scene of an adventure of his famous giant Gargantua: this one would have improvised a game of shuffleboard with Lucifer, whose goal was Roussière. La Pierre de Nauline, puck of Gargantua, would be the witness of his victory!
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What an Oak! Oh! What a beautiful chapel one could build there! …was the exclamation that Father Hillaret had, seeing this old and huge oak tree in 1873, during a visit to his parishioners in the village of La Menantonnière. This exclamation spread through the parish and beyond. The Abbot pursued his idea of building a chapel dedicated to the Holy Family with the agreement of Monsignor Colet, it was built according to the plans of Mr. Clair, departmental architect and was born in 1874. Inside the Chapel, the white stone altar surmounted by statues of Jesus, Mary and Joseph is in the oak. The Holy table is fixed on the roots which serve as a kneeler for those who communicate. Outside, long branches covered the sanctuary. Unfortunately, the oak was decapitated by the storm of February 13, 1972.
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Along a small road bordering the Petit Lay river, a cliff of about 30m and a site equipped for climbing with several routes and levels of difficulty. The small surrounding roads between this site and the tomb of Georges Clémenceau are also very pleasant.
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Chapel built around an old oak tree and linked to the pilgrimage of Notre Dame de la Salette not far from here. The old oak tree was blown down by the wind in 1972, but its roots remain which can be seen extending around the building, and especially its trunk in which the altar of the chapel is nestled.
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The region around La Roche-sur-Yon offers a diverse range of natural monuments, from expansive forests and wetlands to picturesque rivers and unique geological formations. You can find artificial lakes like Lac de la Bultière, tranquil ponds such as the Beau Soleil natural site, and intriguing river features like Pierre de Nauline. The area also boasts significant natural areas like the Forêt d'Aizenay and parts of the Sèvre Nantaise river.
Yes, several natural monuments are ideal for families. Lac de la Bultière offers a 15 km path perfect for walking or cycling, and the Beau Soleil natural site provides a peaceful pond with benches and a walking trail, both suitable for a relaxed family outing.
The natural monuments around La Roche-sur-Yon are excellent starting points for various outdoor activities. You can enjoy hiking, road cycling, and gravel biking. For example, there are numerous hiking routes, including a loop around Lake Moulin Papon, and diverse road cycling routes that take you through the scenic landscapes. Gravel biking is also popular, with routes like the Rambourg Mill loop. Additionally, the Sèvre Nantaise river is great for canoeing and kayaking.
For diverse ecosystems and wildlife, the Forêt d'Aizenay is a prime location. This 420-hectare forest is classified as a ZNIEFF due to its importance for biodiversity, featuring streams, forest ponds, heathlands, and oak groves. It's home to rare butterflies and nesting birds like the European nightjar. The nearby Marais Poitevin Regional Natural Park, often called the 'Green Venice,' is also a vast wetland with exceptional biodiversity, ideal for observing migratory birds and unique flora.
Yes, Lac de la Bultière is known for its exceptional fish wealth. You can find almost all kinds of fish, including perch, pike, zander, catfish, carp, roach, bream, and tench. Predator fishing is possible from the shore or by boat, and there's even a designated night carp fishing route.
The Forêt d'Aizenay, located east of La Roche-sur-Yon, is a significant natural monument spanning 420 hectares, making it the seventh-largest forest in the Vendée department. Further afield, the Marais Poitevin Regional Natural Park, a vast wetland often called the 'Green Venice,' is the second-largest wetland in France and internationally recognized for its ecological importance.
Yes, Pierre de Nauline is a large block situated in a river, known for its historical and legendary associations, including tales of Gargantua. Another notable feature is La Boissière Cliff, a 30-meter cliff along the Petit Lay river, which is also a site equipped for climbing.
The best time to visit the natural monuments generally depends on your preferred activities. Spring and autumn offer pleasant temperatures for hiking and cycling, with vibrant flora in spring and beautiful foliage in autumn. Summer is ideal for water activities on the Sèvre Nantaise or enjoying the lakes, though it can be warmer. Winter provides a different, quieter perspective, especially in the forests.
Yes, the Sèvre Nantaise river, a picturesque natural feature of the region, is known for its calm and running waters, making it ideal for canoeing and kayaking. Its varied landscapes and historical mills along its banks add to the experience.
You can find more details about the Forêt d'Aizenay, including its features and what makes it worth visiting, on the local tourism website. For example, you can visit tourisme-vie-et-boulogne.fr for more information.
There are many options for hiking and walking. The Lac de la Bultière offers a 15 km path around its perimeter, perfect for a long walk or bike ride. The Beau Soleil natural site has a trail for walking around the pond. For more extensive options, explore the various hiking routes available in the region, such as the Lake Moulin Papon Loop or the Lac des Bultières loop.


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