Natural monuments around Serrières-Sur-Ain feature a landscape shaped by the Ain River, characterized by dramatic gorges and unique geological formations. The region offers diverse natural sites, from ancient caves to significant paleontological discoveries. These areas provide opportunities for observing natural beauty and understanding the local geological and historical context.
Last updated: July 2, 2026
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We tried the Arc'Aïk Battle for our fun day: it's awesome! Definitely worth doing! The refreshments offered by the organizers were a big plus (the EcoCUPs are very beautiful!).
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The dozens of footprints found at this site date back 150 million years. They correspond to traces of sauropods that lived in the Jurassic.
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An active water cave that is locked. Only the cavers have access here.
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In the Magdalenian (17,000 to 14,000 years before present) the caves served as a shelter for prehistoric people. During the excavations, weapons, tools and bones came to light. Wikipedia.
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The Cerdon Caves are located in the French communes of Cerdon and Labalme, in the department of Ain in the Auvergne-Rhône-Alpes region. They house an archaeological site from the Magdalenian period. They are open to visitors for their speleological interest. Wikipedia
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Hidden in the moss-covered woods, this magical cave is a sight to behold. Although it is no longer permitted to enter the cave, its entrance is spectacular. Inside the cave there are submerged sections that have been explored by divers.
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Starting from the hamlet of Bombois on the left bank of the Ain valley, a family walk in the forest leads to this waterfall with its funny name. Find "8 walks around water" in a booklet on sale for €2 at the Tourist Office
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The region is rich in unique geological formations. You can explore the dramatic Gorges de l'Ain, where the river has carved its way through the landscape, offering rugged beauty. Another notable site is the Dinosaur Footprints of Villette, a paleontological site featuring traces of Sauropod dinosaur footprints dating back 150 million years.
Yes, several natural monuments are suitable for families. The Cascade de la Pisse Vache is accessible via a family walk from the hamlet of Bombois. The Cerdon Caves also offer a family-friendly experience, allowing visitors to explore their speleological interest and learn about their Magdalenian history. Additionally, the Dinosaur Footprints of Villette provide an engaging educational outing for all ages.
For magnificent panoramic views, head to the Roches de Merpuis. These 571-meter high rocks offer sweeping vistas over the surrounding landscape, including Île Chambod and the Ain River. For even more expansive views, the Grand Colombier, a high peak of the Jura massif, provides breathtaking 360-degree panoramas stretching from Lake Geneva to the Alps.
The region has several natural sites with historical significance. The Cerdon Caves are an archaeological site from the Magdalenian period, where excavations uncovered ancient weapons, tools, and bones. The Grotte Préhistorique "la Gegnière" near the Serrières-sur-Ain bridge is another site of historical interest, known for engraved pebbles depicting bisons and reindeer found there.
Yes, the region offers excellent opportunities for wildlife observation. The Roches de Merpuis are a favored habitat for chamois. The Anciens Méandres du Rhône à Serrières-de-Briord, managed as a Sensitive Natural Space, are vast marshlands supporting exceptional biodiversity, including over 300 plant species and 15 remarkable animal species. Further afield, the Marais de Lavours is a Ramsar-labeled site known for its unique biodiversity with over 4,000 recorded species of flora and fauna.
The area around Serrières-sur-Ain is ideal for various outdoor activities. You can find numerous running trails, such as the 'Rocher de Saint-Alban – Belvédère des Roches loop', or cycling routes like the 'Cize-Bolozon Viaduct Loop'. Mountain biking is also popular, with trails like the 'Corveissiat Cave – Cize-Bolozon Viaduct loop'. For more details and routes, explore the running, cycling, and MTB guides for the region.
Yes, the region is home to several protected natural areas. The Réserve Naturelle de la Grotte de Hautecourt is France's first subterranean natural reserve, offering interpretive panels about its biodiversity. The Anciens Méandres du Rhône à Serrières-de-Briord is managed as a Sensitive Natural Space and is a Natura 2000 site. The Marais de Lavours is also a Ramsar-labeled site of international importance, recognized for its unique biodiversity.
Yes, you can visit the Cerdon Caves, which are open to visitors and house an archaeological site. Another notable cave is Grotte de Corveissiat, an active water cave. While access to Grotte de Corveissiat is restricted to cavers, its entrance hidden within moss-covered woods is a spectacular sight.
Île Chambod is a significant natural island in the Ain River near Serrières-sur-Ain. It is known as a tranquil natural haven and offers various activities, providing opportunities to enjoy the river and its surrounding environment.
Many natural monuments are integrated into hiking routes. A trail leads to the summit of the Roches de Merpuis, offering rewarding views. The Cascade de la Pisse Vache is reached via a family walk through the forest. For more advanced hikers, the Grand Colombier provides challenging routes with expansive panoramas. You can find detailed hiking routes in the running guide, which includes longer trails that often pass through natural monuments.
For more information on the natural heritage of the Ain region, including its diverse landscapes and opportunities for outdoor activities, you can visit the official tourism website: ain-tourisme.com.


Extend your search for the best caves by checking out these guides of the top ones around Serrières-Sur-Ain: