4.0
(13)
85
riders
14
rides
Gravel biking around Porcaro offers a network of routes through varied terrain, characterized by historical sites, greenways, and agricultural landscapes. The region features gentle elevation changes, making it accessible for different skill levels. Trails often follow former railway lines or quiet country roads, providing a mix of surfaces suitable for gravel bikes. These routes connect points of interest such as ancient castles and abbeys, alongside natural features like ponds and valleys.
Last updated: May 22, 2026
7
riders
Hard gravel ride. Good fitness required. You may need to push your bike for some segments of this route.
3.0
(1)
4
riders
47.0km
03:10
530m
530m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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5.0
(1)
7
riders
49.8km
02:27
260m
260m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
3.0
(1)
3
riders
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5.0
(2)
9
riders
129km
06:56
820m
820m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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Aff Valley, a superb route. Beware of roots in wet weather. But it's magnificent.
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This former watermill, documented as early as 1089, was initially used as a fulling mill before being converted into a flour mill in the 19th century. Its operation ceased on December 31, 1974. Since then, the building has stood as a significant heritage landmark, marking the industrial and riverine history of the Vilaine Valley.
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Great for a crepe break. Even better for a beer break!!
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Very beautiful castle, the crows that prowl around it make it look... strange.
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Pleasant and shaded on foot or by bike. A few paths // to do on foot or by mountain bike
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Gravel biking around Porcaro offers a range of difficulties. You'll find routes suitable for various skill levels, from moderate loops ideal for casual rides to more challenging long-distance routes. The region is generally characterized by gentle elevation changes, making many trails accessible. For example, Guer loop from Guer is rated as moderate, while Trécesson Castle – Paimpont Abbey and Pond loop from Beignon is considered difficult.
Yes, the region's gentle elevation changes and routes often following former railway lines or quiet country roads make it suitable for families. While specific 'family-friendly' designations aren't always explicit, many moderate trails offer a pleasant experience for riders of varying ages and abilities. Look for routes that utilize greenways for smoother, more consistent surfaces.
The gravel bike trails around Porcaro feature varied terrain, including greenways, quiet country roads, and paths through agricultural landscapes. Many routes follow former railway lines, providing relatively flat and consistent surfaces. You'll also encounter historical sites, natural ponds, and valleys, offering a mix of natural and cultural scenery.
Yes, many of the gravel bike routes around Porcaro are designed as loops, allowing you to start and end at the same point. Examples include the Oyon Valley Greenway – Augan old railway station loop from Guer and the Guer loop from Guer. This design makes planning your ride and return journey straightforward.
The trails often connect various points of interest. You can explore historical sites like Paimpont Abbey and Pond, or natural features such as the Fairies' Mirror Pond. Other attractions include the ancient Menhirs of Monteneuf and the intriguing Merlin's Seat.
The duration of gravel bike trails in Porcaro varies significantly based on distance and your pace. For instance, a moderate route like the Oyon Valley Greenway – Augan old railway station loop from Guer (31.6 miles) can take around 3 hours 11 minutes. Longer, more challenging routes, such as Moulin de Blond Lock – Guipry-Messac Mill loop from Monteneuf (80.6 miles), might require over 8 hours.
While specific public transport links directly to trailheads might be limited, the region is accessible. It's advisable to check local bus or train services to nearby towns like Guer or Beignon, which serve as starting points for several routes. Planning your journey in advance will help ensure smooth access to your chosen trail.
The best season for gravel biking in Porcaro is generally spring through autumn. During these months, the weather is typically mild, and the landscapes are vibrant. While winter riding is possible, some paths might be muddier or less accessible, so always check local conditions before heading out.
Many routes pass through or near small towns and villages, offering opportunities for refreshment. While not every trail will have a cafe directly on the path, you can often find local establishments in places like Guer or Beignon. It's always a good idea to carry sufficient water and snacks, especially on longer routes.
The area is highly rated by the komoot community, with an average score of 4.1 stars from more than 10 reviews. Reviewers often praise the diverse terrain, the blend of historical sites with natural beauty, and the well-maintained greenways that make for enjoyable riding. The accessibility for different skill levels is also frequently highlighted.
Parking is generally available in the towns and villages that serve as common starting points for the trails, such as Guer, Beignon, or Saint-Malo-de-Beignon. Look for public parking areas within these communities. Always ensure you park responsibly and check for any local parking regulations.
Yes, for experienced riders seeking a challenge, there are several difficult routes. For example, the Trécesson Castle – Entrance to the Val Sans Retour loop from Saint-Malo-de-Beignon covers 28.8 miles with significant elevation changes. The region's longer routes, often connecting multiple points of interest, also provide a good test of endurance.


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