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Brittany

Redon

Top 6 Natural Monuments around Redon

Best natural monuments around Redon are found in a region characterized by the confluence of the Rivers Oust and Vilaine. This area features diverse natural beauty, from extensive marshes and river valleys to ancient forests and megalithic structures. The Pays de Redon offers a combination of valleys and marshes, providing opportunities for walks, hiking, and exploring rich countryside. These natural features contribute to the region's appeal for outdoor activities.

Best natural monuments around Redon

  • The most popular natural monuments is…

Last updated: June 18, 2026

Alignments du Moulin

Highlight • Monument

The menhirs of Brittany are large, mostly solitary monoliths erected by the people of the Megalithic culture, some of which were later toppled or repurposed.

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The Fairy Cave of Tréal

Highlight • Historical Site

The pottery found dates this tomb to around 2500 and 3500 BC. This tomb with a side entrance, more than 15 meters long, was very degraded. It is 15 meters long and is a real spectacle.

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Marais de Gannedel

Highlight • Natural

Place to attach your bike and picnic table. Tour of the marsh 6km on foot.

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Rocher d'Uzel

Highlight • Viewpoint

Magnificent view point on the banks of the Vilaine as well as Saint Malo de Phily. However, be careful with the descent following the GR which can be perilous in wet weather (Large difference in altitude)

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Ancient Landes Quarry (Geological Site)

Highlight • Natural Monument

We can observe an unconformity between rocks coming from two geological periods (Brioverian and Ordovician). To get there, follow the sign from the road, keep to the left of the path (private property).

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Chêne de Breslon

Highlight • Natural Monument

The Breslon oak was apparently planted in 1598, on the occasion of the visit of Henri IV, returning from Nantes.
Although having suffered from different storms,
it is approximately 27 meters high and has a circumference of 6.45 meters

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Popular around Redon

The GR 39 — On the historical traces of Brittany

Brittany by bike – cycling from Nantes to Mont-Saint-Michel

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The GR 39 — On the historical traces of Brittany

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Julien Harté

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Pascal Prioul
November 7, 2025, Chêne de Breslon

A magnificent and remarkable tree that is said to have been planted over 400 years ago.

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Very nice hike. Please note, the indicated parking lot no longer exists, you must park near the football stadium

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We can observe an unconformity between rocks coming from two geological periods (Brioverian and Ordovician). To get there, follow the sign from the road, keep to the left of the path (private property).

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Christophe
November 5, 2023, Chêne de Breslon

The Breslon oak was apparently planted in 1598, on the occasion of the visit of Henri IV, returning from Nantes. Although having suffered from different storms, it is approximately 27 meters high and has a circumference of 6.45 meters

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Christophe
November 5, 2023, Rocher d'Uzel

Magnificent view point on the banks of the Vilaine as well as Saint Malo de Phily. However, be careful with the descent following the GR which can be perilous in wet weather (Large difference in altitude)

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The Gannedel marsh was formed where the Canut joins the Vilaine, and is today classified as a natural zone of ecological fauna and flora interest (ZNIEFF), welcoming more than a hundred species of birds throughout the year.

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The covered alley of Tréal or also called Grotte aux fées according to a legend is an isolated burial site, located at the top of a hill called "La butte de Tréal" or "the rock of Tréal".

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About 5000 years old row of stones with good explanation.

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Frequently Asked Questions

What are some of the most unique natural monuments to visit around Redon?

Beyond the well-known sites, you can explore the ancient megalithic site of Alignments du Moulin, featuring large menhirs that predate the Egyptian pyramids. Another unique spot is The Fairy Cave of Tréal, an isolated burial site with a more than 15-meter-long tomb, offering superb views of the countryside.

Are there any natural monuments suitable for families with children?

Yes, several natural monuments around Redon are family-friendly. The Marais de Gannedel offers an accessible circuit with footbridges and observatories, perfect for a pleasant walk. The Chêne de Breslon, a magnificent 400-year-old oak tree, is also a great spot for families to visit.

What kind of natural features can I expect to see around Redon?

The Redon region is rich in diverse natural features. You'll find extensive marshes like the Redon Marshes (Marais de Vilaine) and the Marais de Gannedel, which are crucial bird sanctuaries. River valleys, ancient forests such as Paimpont Forest, and dramatic geological formations like the Corbinières Water Gap with its pinewood cliffs are also prominent.

Where can I find scenic viewpoints of the Redon countryside?

For breathtaking views, visit Rocher d'Uzel, which offers magnificent panoramas of the Vilaine River and Saint Malo de Phily. The elevated location of The Fairy Cave of Tréal also provides superb views of the surrounding countryside.

What outdoor activities can I do near these natural monuments?

The region offers a variety of outdoor activities. You can enjoy hiking on trails like the 'Fairies of Tréal Trail' or 'The Three Bridges Trail' mentioned in the Hiking around Redon guide. Cycling and gravel biking are also popular, with routes such as the 'Canal de Nantes à Brest – Magpie Island loop' available in the Gravel biking around Redon guide and Cycling around Redon guide. Many sites are also ideal for nature walks and birdwatching.

Are there any historical or cultural sites among the natural monuments?

Yes, the region blends natural beauty with rich history. The Alignments du Moulin is a significant megalithic site dating back to 4500-2500 BC. The Fairy Cave of Tréal is another historical burial site. The Vallée du Don is steeped in local legends, featuring uniquely shaped rocks with folklore associations.

What is the best time of year to visit the natural monuments around Redon?

Spring and autumn are generally ideal for visiting the natural monuments around Redon. In spring, the marshes like Gannedel Marsh are particularly vibrant with bird reproduction, and the landscape is lush. Autumn offers pleasant temperatures for hiking and beautiful foliage. Summer is also popular for water activities on the rivers and marshes.

Can I spot wildlife in the natural monument areas?

Absolutely. The extensive marshes, such as the Redon Marshes (Marais de Vilaine) and the Marais de Gannedel, are designated bird sanctuaries and are excellent for birdwatching. You can expect to see a wide variety of avian life, especially during spring. The diverse ecosystems also support other local wildlife.

What is the Corbinières Water Gap and why is it worth visiting?

The Corbinières Water Gap is a dramatic geological site where the River Vilaine has carved deeply into sandstone, creating striking pinewood cliffs. It's worth visiting for its rugged natural beauty and to witness the powerful force of nature that has shaped the landscape, offering magnificent views and steep paths for exploration.

Is Paimpont Forest considered a natural monument near Redon?

While a bit further afield (about 38 km from Redon), Paimpont Forest is a renowned natural monument. It's famous as a 'magical forest' and is part of ancient woodlands often associated with Arthurian legends, offering a unique blend of nature and cultural heritage for those willing to travel a little further.

Are there any large wetland areas to explore besides the Redon Marshes?

Yes, in addition to the Redon Marshes, the Brière Regional Natural Park is located approximately 32 km from Redon. It is the second-largest marsh area in France, offering extensive wetlands, unique boat tours, and opportunities to observe diverse wildlife.

What makes the Vallée du Don special?

The Vallée du Don, known as the 'land of 7 Rivers,' is special for its blend of natural beauty and local folklore. It features uniquely shaped rocks, such as the 'rock of the Carbosse fairy' and the 'rock of lovers,' overlooking the winding Don river. A dedicated hiking circuit allows visitors to explore this intriguing and legend-rich landscape.

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