4.7
(46)
495
riders
69
rides
Gravel biking around Hillion, located in the Côtes d'Armor department of Brittany, France, offers diverse terrain for cyclists. The region features the Baie de Saint-Brieuc Nature Reserve, known for its extensive tidal flats and coastal paths. Routes often incorporate sections of the Vélomaritime coastal cycle route and rehabilitated greenways like the Viaduc des Ponts-Neufs, providing scenic views over valleys and the coastline. This varied landscape includes forested areas, rural roads, and coastal sections, making it suitable for different gravel biking…
Last updated: August 14, 2026
4.6
(12)
75
riders
39.5km
02:30
360m
360m
Hard gravel ride. Good fitness required. You may need to push your bike for some segments of this route.
5.0
(1)
34
riders
54.3km
03:30
630m
630m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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4.5
(4)
28
riders
41.3km
02:29
390m
390m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5.0
(2)
31
riders
91.1km
05:49
840m
840m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
19
riders
110km
07:20
1,020m
1,020m
Hard gravel ride. Very good fitness required. You may need to push your bike for some segments of this route.
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We accidentally drove under the viaduct. Nice impression
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Our starting point. The house was unfortunately closed.
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A path rather than a road that comes across a somewhat unexpected passage with a beautiful view from above.
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small passage with a nice view, and on a car-free road
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The Greenway - and the Percée Viaduct - a fascinating story, which can be read on the information panels and is very interesting to me. Here's a translation of Vaduz: Like elegant young ladies striding over the valleys of the Lilliputian kingdom, at the beginning of the 20th century, nine viaducts, including the Parfond de Gouët Viaduct, with their beautiful brick arches, stretched along the very first railway line of the local network, St. Brieuc - Plouha. These engineering structures, built by a native of the region, Louis Harel de La Noë (1852-1931), a bridge and road engineer, allowed the small train of the Côtes-du-Nord to follow the winding and steep coastline without much effort. Lightness and elegance are the words that come to mind when describing the architecture of this 1903 building, characterized by numerous columns and arched vaults and its masonry in warm brick colors. The techniques used demonstrate boldness, ingenuity, and originality: reinforced concrete anchors (rebars) were installed to increase the compressive strength of the pillars and prevent cracks.
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Hillion and its surroundings offer a significant number of routes suitable for gravel biking with minimal traffic. You'll find over 45 such routes, ranging from moderate to difficult, allowing you to explore the diverse landscapes of the Baie de Saint-Brieuc and beyond.
The traffic-free gravel routes around Hillion feature a varied terrain, combining coastal paths, forested areas, and quiet rural roads. You can expect a mix of surfaces, from compacted gravel and dirt tracks to paved sections on greenways, offering a true gravel biking experience through the peninsula and inland areas.
While many routes around Hillion are rated moderate to difficult, the region's extensive network of Greenways and Cycle Routes, including sections of the EuroVelo 4 - La Vélomaritime, often provide smoother, car-free options suitable for families. These paths typically offer gentler gradients and scenic views away from main roads.
Yes, many of the gravel bike routes around Hillion are designed as loops, allowing you to start and finish at the same point without retracing your steps. For example, the Greves de langueux – Douvenant Viaduct loop from Saint-Brieuc offers a moderate 39 km circular ride with minimal traffic.
Riding the traffic-free gravel trails around Hillion offers access to stunning natural features. You can explore the ecologically significant Baie de Saint-Brieuc Nature Reserve, known for its migratory birds and mussel beds. Highlights include the La Grève des Courses and the Pointe des Guettes Viewpoint, offering panoramic views of the bay. The Saint-Brieuc Bay Visitor Centre is also a great stop to learn more about the local flora and fauna.
Parking is generally available at key access points for the cycling network. The Maison de la Baie, which serves as a nature center and VTT station, is a common starting point for many routes and offers parking facilities. Additionally, many towns and villages along the routes, such as Yffiniac or Saint-Brieuc, provide public parking options near trailheads.
The Côtes d'Armor region has invested in cycling infrastructure, and some public transport options may accommodate bikes, particularly regional trains (TER) or specific bus lines. It's advisable to check the local public transport provider's website for their bike carriage policies and schedules, especially if you plan to use services to reach starting points further afield like Saint-Brieuc or Plérin.
The spring and autumn months are generally ideal for gravel biking in Hillion. The weather is typically milder, and the natural landscapes are vibrant. Summer can also be pleasant, but trails might be busier, especially near coastal areas. Winter offers a unique, quieter experience, but be prepared for cooler temperatures and potentially wet conditions.
While many gravel routes take you through natural and rural areas, you'll often find opportunities to refuel in the charming villages and towns along the way. Hillion itself has amenities, and routes passing through larger towns like Saint-Brieuc or Plérin will offer a wider selection of cafes, bakeries, and restaurants. It's always a good idea to carry some snacks and water, especially on longer stretches.
The komoot community highly rates the gravel biking experience around Hillion, with an average score of 4.5 stars. Reviewers often praise the diverse landscapes, the tranquility of the car-free paths, and the stunning coastal views. Many appreciate the well-maintained greenways and the opportunity to explore the rich biodiversity of the Baie de Saint-Brieuc.
Yes, for experienced riders seeking a challenge, Hillion offers several longer and more demanding traffic-free gravel routes. For instance, the Small harbor bridge in Binic – Port of Binic loop from Saint-Brieuc is a difficult 110 km route with over 1000 meters of elevation gain, providing an extensive exploration of the region's varied terrain.
Absolutely! Hillion's gravel routes often pass by or near interesting historical sites. A notable example is the impressive Ponts-Neufs Viaduct, an arched structure that has been rehabilitated as a greenway, offering spectacular views. The region also features charming chapels, calvaries, and other built heritage that you can discover along your rides.


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