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Saint-Brieuc

Yffiniac

Top 6 Natural Monuments around Yffiniac

Best natural monuments around Yffiniac are primarily centered around the Baie de Saint-Brieuc National Nature Reserve, a significant wetland in Brittany, France. Yffiniac serves as a gateway to this expansive natural area, known for its large tidal range and rich biodiversity. The region features diverse landscapes, from coastal mudflats and salt meadows to riverine granite formations. These natural attractions offer opportunities for exploring the unique environment of the Côtes-d'Armor department.

Best natural monuments around Yffiniac

  • The most popular natural monuments…

Last updated: June 20, 2026

Saint-Brieuc Bay Visitor Centre

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The site is exceptional because it is located in the Nature Reserve which is home to a very varied fauna and flora. It can accommodate up to 40,000 migratory birds …

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La Grève des Courses, Saint-Brieuc Bay Nature Reserve

Highlight (Segment) • Natural Monument

Wild and secret, the Yffiniac cove is the most advanced part of the land of the Bay of Saint-Brieuc. Located in the heart of the largest Nature Reserve in Brittany, it can be discovered along the Chemin des Grêves.

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Chaos du Gouët Trail

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This path borders the Gouët river, which meanders along the mossy rocks, giving to see magical landscapes.
If it has rained recently, the path will be muddy. It is therefore necessary to provide appropriate equipment: boots, walking sticks...

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Menhir de la Roche Longue

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This impressive Neolithic menhir has been knocked down and stands tall. It is 5.9 meters long.

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Pointe des Guettes Viewpoint

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The point gives access to a beautiful view of Morieux Cove and the surrounding coasts. An orientation table allows you to identify the surrounding villages. Take the time to sit there and read the landscape.

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Rainer Koenemann
June 13, 2026, Maison de la Baie de Saint-Brieuc

Our starting point. The house was unfortunately closed.

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Dreamlike hiking trail, very varied. Unfortunately, the lake fog disturbed our visit, shrouding much in a dreary gray.

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Difficulty finding the start of the hike, so we chose the bay house.

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Continuation of the hike, very beautiful route

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Today, La Grève des Courses is part of the GR34, a coastal hiking trail that allows you to discover all of Brittany’s coasts. From here, you can enjoy magnificent views of the Anse d’Yffiniac. The area is also home to mussel farms, known as “bouchots”, which are a local specialty. The Réserve Naturelle de La Baie de Saint-Brieuc itself is the largest nature reserve in Brittany.

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In the 19th and 20th centuries, La Grève des Courses was a festive place where horse races and aviation meetings took place. However, it later became a wild dump where waste was thrown directly onto the sand, polluting the bay. Thanks to the efforts of environmental associations, it was transformed into a nature reserve.

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The site is exceptional because it is located in the Nature Reserve which is home to a very varied fauna and flora. It can accommodate up to 40,000 migratory birds in winter. The site is also remarkable because it is located in the heart of the bay of Saint-Brieuc, the fifth bay in the world for the amplitude of its tides. The sea can recede more than 7 km! It is this natural heritage that the Maison de la Baie, classified as Maison Nature, lets you discover through its museum, its temporary exhibitions, its educational activities, its walks and its nature outings. Actions that show the richness of biodiversity, raise awareness of environmental protection and develop eco-citizen behavior. https://www.saintbrieuc-armor-agglo.bzh/sortir-et-decouvert/proteger-notre-environnement/preservation-de-la-baie/la-maison-de-la-baie

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Wild and secret, the Yffiniac cove is the most advanced part of the land of the Bay of Saint-Brieuc. Located in the heart of the largest Nature Reserve in Brittany, it can be discovered along the Chemin des Grêves.

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Frequently Asked Questions

What are the most prominent natural monuments to visit around Yffiniac?

The region around Yffiniac is primarily known for the expansive Baie de Saint-Brieuc National Nature Reserve. Within this reserve, the La Grève des Courses, Saint-Brieuc Bay Nature Reserve offers exceptional views of the Anse d’Yffiniac. Other significant natural sites include Chaos du Gouët Trail, known for its impressive granite boulders, and the peaceful Etang de Lann Vaux, ideal for birdwatching.

Are there family-friendly natural monuments around Yffiniac?

Yes, several natural monuments are suitable for families. The La Grève des Courses, Saint-Brieuc Bay Nature Reserve is great for gentle walks and birdwatching. The Chaos du Gouët Trail provides a beautiful and safe setting for family hikes and picnics amidst unique granite formations. Additionally, the Saint-Brieuc Bay Visitor Centre offers interactive exhibits that are engaging for all ages.

What kind of wildlife can I observe in the Baie de Saint-Brieuc National Nature Reserve?

The Baie de Saint-Brieuc National Nature Reserve is a crucial site for birdwatching, especially during winter. It hosts up to 40,000 migratory birds from 112 species, including Brant geese, common shelducks, swans, herons, and cormorants. The salt meadows and intertidal zones also support a rich diversity of flora and fish.

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

The Baie de Saint-Brieuc National Nature Reserve is particularly spectacular for birdwatching during the winter months when it hosts a large number of migratory birds. However, the GR®34 customs officers' footpath and sites like Les Chaos du Gouët offer beautiful hiking opportunities throughout the warmer seasons, allowing visitors to enjoy the diverse landscapes and outdoor activities.

Are there hiking trails near these natural monuments?

Absolutely. The GR®34 customs officers' footpath runs alongside the Baie de Saint-Brieuc National Nature Reserve, offering excellent opportunities for coastal hiking. The Chaos du Gouët Trail also provides a scenic path along the Gouët river. For more options, you can explore various running trails around Yffiniac, including routes like the 'Küstentrail loop' or 'Pont des Courses – Douvenant Viaduct loop', which can be found in the Running Trails around Yffiniac guide.

What unique geological features can be found in the Yffiniac area?

The region is notable for its impressive granite formations, particularly at Les Chaos du Gouët, where large granite boulders lie in the riverbed. This site showcases the raw power of nature sculpted into the landscape. Additionally, the area features significant tidal ranges, one of the largest in the world, which shapes the coastal mudflats and sand of the Baie de Saint-Brieuc.

Is there a visitor center to learn more about the Baie de Saint-Brieuc?

Yes, the Saint-Brieuc Bay Visitor Centre (Maison de la Baie) is located within the Nature Reserve. It provides informative exhibits and guided tours to help visitors understand and appreciate the bay's natural resources, including its varied fauna, flora, and significant tidal amplitude. It's an excellent starting point for exploring the area.

What other outdoor activities can I do near the natural monuments?

Beyond hiking and birdwatching, the area offers great opportunities for cycling. You can find various cycling routes, such as the 'In the Baie de Saint-Brieuc — loop' or longer rides like the 'Ponts-Neufs Viaduct – Côtière Footbridge loop', detailed in the Cycling around Yffiniac guide. The Etang de Lann Vaux is also an ideal location for fishing.

Are there any historical natural monuments in the vicinity?

While primarily focused on natural beauty, the area also features historical elements. The Menhir de la Roche Longue, an impressive Neolithic granite menhir, is classified as a historical monument and stands as a testament to ancient human presence in the landscape.

Where can I find panoramic views of the coastline and bay?

For stunning panoramic views, visit the Pointe des Guettes Viewpoint. It offers beautiful vistas of Morieux Cove and the surrounding coasts, complete with an orientation table to help identify local landmarks. The La Grève des Courses, Saint-Brieuc Bay Nature Reserve also provides magnificent views of the Anse d’Yffiniac.

What makes the Anse d'Yffiniac unique within the Baie de Saint-Brieuc?

The Anse d'Yffiniac is the most inland extension of the Bay of Saint-Brieuc, encompassing vast mudflats, sand, and salt meadows. It's characterized by one of the world's largest tidal ranges, with the sea receding more than 7 kilometers, creating a dynamic and rich ecosystem vital for numerous bird and fish species.

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