4.7
(425)
2,138
hikers
56
hikes
Hiking around Hillion offers access to the diverse landscapes of the Côtes-d'Armor department in Brittany, France. The region is characterized by its integration into the Réserve Naturelle Nationale de la Baie de Saint-Brieuc, featuring vast mudflats, salt marshes, sandy beaches, rocky coastlines, wooded areas, and meadows. The renowned GR®34 Customs Officers' Path provides continuous scenic walks along the coastline, revealing a dynamic ecosystem that changes with the tides.
Last updated: May 12, 2026
4.8
(4)
25
hikers
22.8km
06:01
200m
200m
Hard hike. Very good fitness required. Mostly accessible paths. Sure-footedness required.
4.8
(131)
597
hikers
9.36km
02:27
80m
80m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

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4.8
(107)
487
hikers
11.5km
03:03
110m
110m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
4.7
(20)
85
hikers
17.1km
04:32
170m
170m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
4.7
(21)
95
hikers
4.47km
01:10
30m
30m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
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worth dwelling on
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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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Continuation of the hike, very beautiful route
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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 50 hiking trails around Hillion, offering a wide range of options for exploring the diverse landscapes of the Réserve Naturelle Nationale de la Baie de Saint-Brieuc. You'll find everything from easy strolls to more challenging coastal treks.
Hillion's hiking trails feature a rich variety of terrain, including vast mudflats, salt marshes, sandy beaches, rocky coastlines, wooded areas, and meadows. The landscape changes dramatically with the tides, offering dynamic views. Many routes follow the renowned GR®34 Customs Officers' Path along the coast.
Yes, Hillion offers many easy hiking options. Out of the over 50 trails, more than 30 are classified as easy, making them suitable for beginners or those looking for a relaxed walk. These often provide gentle paths with beautiful coastal views.
For unmissable 360-degree panoramic views across the entire Bay of Saint-Brieuc, including the Yffiniac cove, the Pointe du Roselier is highly recommended. Another excellent spot is Pointe des Guettes, which offers expansive vistas. You can experience these views on routes like the Customs Officers' Trail – Pointe des Guettes Viewpoint loop from Hillion.
Yes, many of the trails around Hillion are circular, allowing you to start and end at the same point. For example, the "Panoramas sur la Réserve Naturelle" is an 8.9 km easy loop around the Hillion peninsula, offering magnificent views of Pointe du Grouin, Pointe des Guettes, Lermot beach, and Bon Abri beach.
Hillion is rich in natural attractions. You can explore the Réserve Naturelle Nationale de la Baie de Saint-Brieuc, known for its diverse habitats and migratory birds. Highlights include the unique Dunes de Bon Abri and historical remnants like an old cannonball oven near Pointe du Roselier. You might also encounter the Saint-Brieuc Bay Visitor Centre (Maison de la Baie) near Pointe du Grouin, which offers insights into the bay's ecology.
Yes, Hillion is suitable for family-friendly hikes, especially given the large number of easy trails available. The varied coastal and natural reserve environments provide engaging scenery for all ages. Consider shorter, less strenuous loops that offer views without significant elevation gain.
Many trails in the Hillion area, particularly those along the GR®34 coastal path, are generally dog-friendly, provided dogs are kept on a leash. However, as part of the Réserve Naturelle Nationale de la Baie de Saint-Brieuc, certain sensitive areas, especially those important for bird nesting or wildlife, may have restrictions. Always check local signage for specific rules.
The best time to hike in Hillion is typically from spring through autumn (April to October) when the weather is milder and the natural landscapes are vibrant. The changing tides offer a unique experience year-round, but spring and early summer are particularly good for birdwatching in the nature reserve.
While specific public transport routes directly to all trailheads might be limited, Hillion is accessible by local bus services from larger towns like Saint-Brieuc. It's advisable to check the local transport schedules in advance to plan your access to the starting points of your chosen hikes.
The komoot community highly rates hiking in Hillion, with an average score of 4.7 stars from over 400 reviews. Hikers frequently praise the stunning coastal views, the diverse natural habitats of the Réserve Naturelle, and the well-maintained paths, especially along the GR®34. The dynamic landscape, changing with the tides, is also a popular highlight.
While many routes are easy to moderate, there are options for more experienced hikers. For instance, the Pointe des Guettes par le sentier des douaniers — boucle depuis Hillion is a difficult 22.8 km (14.2 miles) trail that takes approximately 6 hours to complete, offering a more strenuous coastal experience with significant elevation changes.


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