4.6
(44)
456
riders
37
rides
Gravel biking around Lac De Guerledan offers diverse terrain centered around Brittany's largest artificial lake, which stretches 12 kilometers and is bordered by the vast Quénécan forest. The region features a mix of winding paths, shaded trails, and varied landscapes, including wild moorland, impressive geological formations like the Gorges de Daoulas, and thick sheets of slate. This area provides a network of no traffic gravel bike trails suitable for different fitness and skill levels, often utilizing old railway tracks and…
Last updated: May 26, 2026
4.6
(5)
34
riders
32.1km
01:58
410m
410m
Hard gravel ride. Good fitness required. You may need to push your bike for some segments of this route.
5.0
(1)
7
riders
18.4km
01:00
150m
150m
Easy gravel ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.

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7
riders
72.9km
04:48
990m
990m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5.0
(1)
4
riders
44.1km
02:22
390m
390m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5
riders
27.3km
01:48
290m
290m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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Popular around Lac De Guerledan
Here the origin of the path can be seen: it was an old railway. The old station is well maintained.
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The reconstruction is great! But we left some parts in ruins, which preserves the character of an old building.
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Ideal stop for lunch break! Good, inexpensive and incredible "mobylette" decor
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A great detour to Saint Aignan, the Les Pêcheries de Guerlédan restaurant is very welcoming, with bike parking, a generous meal and welcome. Crossing the village, you can reach the canal a little further on via the lock.
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It's cute! Worth a look in passing.
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Very nice place on this route
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No bikes allowed, dedicated to pedestrians and people with reduced mobility Another bike path between this passage and the cycle path
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There are over 25 dedicated traffic-free gravel bike routes around Lac de Guerlédan, catering to various skill levels. These routes offer a peaceful way to explore the region's diverse landscapes.
The terrain around Lac de Guerlédan is quite varied. You'll find a mix of gravelly surfaces, forest paths through the vast Quénécan forest, and some segments that might be more challenging. While many routes are pleasant for touring and gravel bikes, some longer, more difficult trails may require advanced riding skills and occasionally even bike pushing, especially on the wilder western side with its moorland and gorse.
Yes, there are routes suitable for families looking for an easier ride. For example, the area features segments of the V6 cycle path, which utilizes an old railway track on the northern side of the lake, offering a flatter and very accessible cycling option. While specific 'easy' routes are available, always check the route details for distance and elevation to ensure it matches your family's capabilities.
Spring and autumn generally offer the most pleasant conditions for gravel biking around Lac de Guerlédan, with mild temperatures and beautiful scenery. Summer can also be great, especially for shaded forest trails. While winter riding is possible, be prepared for potentially wet and muddy conditions, particularly on unpaved sections.
The routes offer access to many points of interest. You can cycle past the impressive Guerlédan Dam, explore the historic Guerlédan Lock - Nantes to Brest Canal, or enjoy the tranquility of Landroannec Cove. Many trails also lead through the dense Quénécan forest and offer superb viewpoints of the lake, such as the site of Trégnanton.
Yes, many of the gravel routes are designed as loops, allowing you to start and finish at the same point. An example is the challenging Lock No. 138 of Bon Repos – Bon-Repos Abbey loop from Guerlédan, which covers over 70 km. These circular routes are ideal for exploring different parts of the lake and its surroundings without retracing your steps.
Parking is generally available at various access points around Lac de Guerlédan, especially near popular starting points for trails and attractions. Look for designated parking areas near villages like Guerlédan, Saint-Aignan, or Gouarec, which often serve as hubs for outdoor activities. Always check local signage for specific parking regulations.
Many of the natural trails and forest paths around Lac de Guerlédan are dog-friendly, especially if your dog is accustomed to cycling alongside you. However, it's always best to keep your dog on a leash, particularly in areas with wildlife or other trail users. Be mindful of local regulations, especially near protected areas or specific attractions.
The area is highly rated by the komoot community, with an average score of 4.5 stars. Reviewers often praise the quiet, immersive experience of cycling through the extensive forests and along the lake's shores, the varied terrain that keeps rides interesting, and the sense of escape offered by the traffic-free environment.
Absolutely. Several routes incorporate the historic Cistercian Abbey of Bon Repos. For instance, the Bon-Repos Abbey – Lock No. 138 of Bon Repos loop from Saint-Aignan is a moderate 43 km ride that takes you past this significant 12th-century landmark, offering a blend of natural beauty and cultural heritage.
While many routes offer a challenge, beginners can find suitable options by focusing on shorter, flatter sections, particularly those that follow old railway lines or well-maintained forest tracks. Look for routes described as 'easy' or 'moderate' and check their elevation profiles. The V6 cycle path, for example, provides a gentle introduction to cycling in the area.


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