4.4
(38)
236
riders
29
rides
Gravel biking around Etang Du Pont De Fer features routes that navigate the varied terrain surrounding the Arzal Dam and the Villaine Valley. The landscape is characterized by river estuaries, coastal paths, and areas around the dam, offering a mix of flat sections and moderate ascents. The region also includes significant wetlands and forested sections, providing diverse scenery and surfaces for gravel bike trails. These routes offer access to both natural and historical points of interest within the broader area.
…Last updated: July 3, 2026
4.3
(9)
23
riders
46.7km
02:44
270m
270m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
4.8
(5)
33
riders
41.9km
02:18
190m
190m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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4.8
(4)
23
riders
42.4km
02:33
330m
330m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5
riders
21.1km
01:32
220m
220m
Hard gravel ride. Good fitness required. You may need to push your bike for some segments of this route.
3.0
(1)
13
riders
28.0km
01:59
340m
340m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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The Story of François and Thérèse Mitaillé On August 7, 1944, in the final chaotic weeks of the German occupation, François Mitaillé and his younger sister Thérèse left their home in Penhap, a small hamlet near Marzan. They wanted to return to the farm to tend to the animals. On their way, they were stopped by German soldiers, taken away, and never seen alive again. Days passed, then weeks. The village lived between hope and fear. Finally, it was their own father who, after an endless search, found their bodies—tortured and shot. The loss was immeasurable, not only for their family, but for the entire community. The memorial commemorates François and Thérèse, brother and sister, who were torn away by the violence of war in the prime of their lives. It stands here as a silent witness and a warning that freedom can never be taken for granted.
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The dam itself is interesting, but the route is not ideal for cyclists.
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Panoramic view of the Bay of Bile. One of the most beautiful viewpoints in Morbihan (56).
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Pleasant section of the Rance and Vilaine cycle route, between Vieille Roche and Keraudrain.
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This route of about 34 kilometers is very interesting and amazing, but also demanding on physical condition and technicality, but I recommend it for those who like MTB Cross country.
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Extraordinary under the sun!
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There are over 35 gravel bike trails in the Etang Du Pont De Fer area, offering a diverse range of routes for different skill levels. You'll find options from moderate to difficult, with a good selection of easier paths as well.
Yes, the Etang Du Pont De Fer area offers several routes suitable for beginners. While many trails are moderate, there are 7 routes specifically categorized as easy, perfect for those new to gravel biking or looking for a relaxed ride. These often feature flatter sections along river estuaries and coastal paths.
The majority of gravel biking routes around Etang Du Pont De Fer are considered moderate, with 26 such trails. There are also 6 more challenging routes for experienced riders, and 7 easier options for those seeking a less strenuous experience. The terrain often includes varied sections around the Arzal Dam and the Villaine Valley.
Yes, many of the gravel bike trails in this region are designed as loops. For example, the The Gold Mine – Arzal Dam loop from L'Isle de Ker Olivier is a popular circular route that allows you to explore the area without retracing your steps.
The gravel bike trails around Etang Du Pont De Fer offer varied scenery, characterized by river estuaries, coastal paths, and routes alongside the Arzal Dam and through the Villaine Valley. You'll encounter a mix of natural landscapes and historical points of interest, providing picturesque views throughout your ride.
Absolutely. For a longer ride, consider the Arzal Dam – Old Port of La Roche-Bernard loop from L'Isle de Ker Olivier, which covers approximately 26.9 miles (43.3 km) and takes around 3 hours 25 minutes to complete. This route combines river valleys and coastal sections for an extended adventure.
The region is generally pleasant for gravel biking from spring through autumn. During these seasons, you can enjoy milder weather and lush landscapes. While winter riding is possible, be prepared for potentially wetter conditions on coastal and riverside paths.
Many routes offer views of the Arzal Dam and the historic Old Port of La Roche-Bernard. Trails like the Arzal Dam – Old Port of La Roche-Bernard loop from Pénestin specifically highlight these scenic and historical points of interest.
The gravel biking routes around Etang Du Pont De Fer are highly regarded by the komoot community, with an average rating of 4.4 stars from over 50 reviews. Riders often praise the varied terrain, the scenic views of the dam and old ports, and the well-maintained paths that make for an enjoyable experience.
While specific public transport links directly to trailheads can vary, the region around Etang Du Pont De Fer is generally accessible. It's advisable to check local bus services or regional train connections to nearby towns like La Roche-Bernard or Pénestin, and then plan your ride from there.
Yes, for advanced gravel bikers, there are 6 routes categorized as difficult. These trails typically feature more significant elevation changes or technical sections, providing a greater challenge. An example of a more demanding route is the Villaine Valley – Old Port of La Roche-Bernard loop from Férel, which includes notable ascents.
Parking is generally available in the towns and villages that serve as starting points for these routes, such as Pénestin, L'Isle de Ker Olivier, or Férel. Look for designated parking areas near popular trail access points or local amenities.


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