4.6
(1321)
7,455
hikers
344
hikes
Hiking around Trégueux offers diverse outdoor experiences, blending coastal and countryside environments in Brittany, France. The region features varied terrain, including river valleys, historical viaducts, and proximity to the Saint-Brieuc Bay Nature Reserve. Hikers can explore paths along the Gouët river, known for its granite boulders, and repurposed railway viaducts now accessible for walking. The landscape provides a mix of natural beauty and historical interest for outdoor enthusiasts.
Last updated: May 24, 2026
4.4
(7)
35
hikers
11.0km
02:55
110m
110m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
4.4
(9)
49
hikers
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

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4.5
(18)
46
hikers
9.95km
02:40
120m
120m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
4.7
(6)
33
hikers
9.20km
02:26
80m
80m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
5.0
(3)
23
hikers
28.1km
07:20
210m
210m
Hard hike. Very good fitness required. Easily-accessible paths. Suitable for all skill levels.
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From 1905 to 1948, the train made a stop there between Saint-Brieuc and Moncontour. The inhabitants of the Grèves used it frequently to get around and transport goods, particularly bricks produced by the nearby factory. It was called the "Petit train des Côtes-du-Nord", the former name of the department, because there was only 1 m spacing between its rails compared to 1.435 m on a normal track.
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Classified as a Nature Reserve since 1998, all this wild nature almost disappeared during the 20th century. A landfill was located a little higher up, and plans for a port or even an airport were circulating. After twenty long years of fighting, led in particular by naturalists and local residents, the bottom of the Baie de Saint-Brieuc has regained its original calm and serenity. This landscape of water channels surrounding salt meadows, completely covered during the high tides, welcomes a diversity of birds from all horizons every year.
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Majestic arched viaduct, it is part of the many works of art in the Bay of Saint-Brieuc built by engineer Harel de la Noë at the beginning of the 20th century. 10 m high and 58 m long, it spans a small stream, which once allowed the Chemins de fer des Côtes-du-Nord line to connect Saint-Brieuc to Moncontour.
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You can also reach the station as a pedestrian via the bridge.
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Difficulty finding the start of the hike, so we chose the bay house.
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Beautiful landscape, nice hike
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End of these 25 km, magnificent landscapes
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Very beautiful landscapes, but you need to be in good physical condition as the paths can be dangerous in places.
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There are over 320 hiking routes around Trégueux, offering a wide range of options for all skill levels. This includes more than 160 easy trails, 150 moderate routes, and a few more challenging paths for experienced hikers.
Yes, Trégueux offers many easy trails perfect for beginners and families. For example, the Goëlo Valley loop from Ploufragan is an easy 5.3 km route. Another family-friendly option is the "Balade des Lavoirs" (Wash House Walk), a 10 km circuit that explores historical wash houses and passes through Trégueux park and the Ferme de la Ville Oger, an educational farm with animals.
The region around Trégueux is rich in diverse natural features. You can explore the unique "Chaos du Gouët" where the Gouët river flows among mossy granite boulders, creating magical landscapes. The area also borders the Saint-Brieuc Bay Nature Reserve, known for its significant tidal amplitudes and as a haven for migratory birds. Coastal paths, moorlands, and secluded coves like Yffiniac are also prominent.
Yes, many routes around Trégueux are circular, allowing you to start and end at the same point. An example is the Boutdeville Park – Boutdeville - The Brickworks loop from Yffiniac, an easy 6.6 km trail. The "Balade des Lavoirs" is also a circular route designed to explore the commune's heritage.
Hikers can discover several notable landmarks. The historical Ponts-Neufs Viaduct and the Parfond du Gouët Viaduct, both repurposed for pedestrian use, offer scenic walks. The Saint-Brieuc Bay Visitor Centre provides insights into the local natural heritage. You might also encounter the Menhir de la Roche Longue, an ancient standing stone.
Absolutely. The proximity to the Saint-Brieuc Bay Nature Reserve makes Trégueux an excellent spot for birdwatching. The reserve hosts up to 40,000 migratory birds during winter. The Birdwatching observatory loop from Yffiniac is a moderate 13.5 km path specifically designed for this activity.
Yes, Trégueux's location provides easy access to coastal environments. Sections of the renowned GR34, also known as the "Custom Officers' Path," run along the Brittany coast, offering dramatic cliffs, sandy beaches, and panoramic views of the Bay of Saint-Brieuc, including the Pointe des Guettes Viewpoint.
The hiking routes in Trégueux are highly rated by the komoot community, with an average score of 4.6 stars from over 1200 reviews. Hikers often praise the diverse terrain, from river valleys to coastal paths, and the blend of natural beauty with historical interest, such as the repurposed viaducts.
Many trails in the Trégueux area are suitable for dogs, especially those in natural, open spaces. However, it's always recommended to keep your dog on a leash, particularly in nature reserves like the Saint-Brieuc Bay, to protect local wildlife and ensure a pleasant experience for all hikers.
Yes, the famous GR34, or "Custom Officers' Path," runs along the Brittany coast and has sections accessible from the Trégueux area. This long-distance trail offers extensive hiking opportunities with stunning sea views and diverse coastal landscapes.
Hiking in Trégueux is enjoyable throughout much of the year. Spring and autumn offer pleasant temperatures and vibrant scenery, with wildflowers in bloom or colorful foliage. Summer is also popular, especially for coastal walks, though it can be busier. Winter hiking is possible, particularly in the nature reserve for birdwatching, but paths can be muddy after rain, so appropriate footwear is essential.
Yes, several trails provide excellent views of the sea and the Bay of Saint-Brieuc. The GR34 coastal path offers dramatic vistas, and areas like the Pointe des Guettes Viewpoint are specifically known for their panoramic outlooks over the bay.


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