Natural monuments around Plérin feature a diverse landscape, from coastal headlands to significant tidal bays and river trails. The region is characterized by varied ecosystems and geological formations, offering opportunities to observe wildlife and experience the natural environment. Plérin's natural heritage sites are recognized for their ecological importance and scenic views. These locations boast diverse landscapes, from dramatic clifftops to expansive sandy beaches and vital nature reserves.
Last updated: June 20, 2026
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Our starting point. The house was unfortunately closed.
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Difficulty finding the start of the hike, so we chose the bay house.
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The rocky promontory in front of you is a place charged with emotion. Indeed, it is from there that the women of the area came to greet the men who were leaving or returning from the "Great Fishing", that is to say the cod fishing that was done in Newfoundland and then in Iceland. The fishing campaigns lasted 6 to 8 months. Imagine all the women who were there, standing, coming to say a last "hello" to their loved ones (husband, brother, friend), fearing they would never see them again. Or conversely, imagine them filled with joy at the idea of seeing them again when they saw the boat return to port. Photo credit: Emmanuel Berthier
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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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This impressive Neolithic menhir has been knocked down and stands tall. It is 5.9 meters long.
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Visitors frequently enjoy the ecological significance of the Saint-Brieuc Bay Nature Reserve, known for its diverse landscapes and abundant birdlife. Another popular spot is the Chaos du Gouët Trail, which offers unique riverine scenery with mossy rocks.
Yes, several natural monuments are suitable for families. The Saint-Brieuc Bay Visitor Centre provides interactive exhibits and guided walks, making it an educational and engaging experience. La Grève des Courses, Saint-Brieuc Bay Nature Reserve, is also family-friendly, offering gentle trails and opportunities for birdwatching.
For stunning coastal vistas, visit Pointe du Roselier. This headland offers panoramic views of the sea and the Bay of Saint-Brieuc, extending to Saint-Quay-Portrieux and Cap Fréhel. It's an ideal spot for photography, especially at sunset, and features coastal paths for leisurely strolls.
The Bay of Saint-Brieuc, including the Saint-Brieuc Bay Nature Reserve, is a significant nature reserve, accommodating up to 40,000 migratory birds in winter. It's an excellent location for birdwatching, with diverse fauna and flora. The Saint-Brieuc Bay Visitor Centre offers resources to help you discover this rich biodiversity.
Yes, Les Rosaires Beach is a notable natural monument. This 2-kilometer sandy beach is popular for various activities and features the unique 'Cordon de galets des Rosaires,' a geological formation of rounded pebbles recognized for its natural interest and part of the Natura 2000 network.
The area around Plérin offers various outdoor activities. You can find numerous running trails, including routes like the 'Port entrance loop from Plérin'. For cycling enthusiasts, there are several routes such as the 'Parfond du Gouët Viaduct – Port of Saint-Brieuc loop'. Gravel biking is also popular, with options like the 'Greves de langueux – Douvenant Viaduct loop'. You can explore more options on the Running Trails around Plérin, Cycling around Plérin, and Gravel biking around Plérin guide pages.
Yes, many natural monuments feature hiking opportunities. The La Grève des Courses, Saint-Brieuc Bay Nature Reserve, is part of the GR34 coastal hiking trail. The Chaos du Gouët Trail offers a scenic path along the Gouët river, though it can be muddy after rain, requiring appropriate footwear.
The Bay of Saint-Brieuc is a natural site of immense ecological importance, recognized as the fifth bay in the world for the amplitude of its tides, where the sea can recede over 7 km. It is home to a very varied fauna and flora, accommodating up to 40,000 migratory birds in winter, making it a significant nature reserve. The Saint-Brieuc Bay Visitor Centre provides educational resources about this unique ecosystem.
Parc de la Belle Issue offers a tranquil escape amidst lush greenery. It combines well-maintained flora with playful spaces, making it an ideal spot for both solitary contemplation and group activities, with winding trails and peaceful corners.
The Rocher du Coucou is a rocky promontory with historical significance. It was traditionally a place where women would bid farewell to men departing for the 'Great Fishing' in Newfoundland and Iceland, and joyfully greet their return, making it a place charged with emotion and local maritime history.
Visitors particularly appreciate the diverse landscapes, from rugged coastlines to serene river trails. The rich biodiversity, especially the birdlife in the Bay of Saint-Brieuc, is a major draw. Many also enjoy the well-maintained trails and the opportunities for photography, especially at scenic viewpoints like Pointe du Roselier.


Extend your search for the best caves by checking out these guides of the top ones around Plérin: