4.1
(14)
166
riders
21
rides
Gravel biking around Grimbosq offers diverse terrain within the expansive Grimbosq Forest, a significant natural area in the Calvados department of Normandy. The region is characterized by its mixed beech and oak woodlands, several arboretums, and an animal park. Trails often follow the contours of the Orne River valley, featuring varied elevation changes and natural water features like ponds and small tributaries. This landscape provides a range of gravel biking experiences, from riverside paths to more physically demanding routes.
Last updated: July 3, 2026
5.0
(1)
31
riders
64.0km
04:41
1,090m
1,090m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
3.0
(1)
36
riders
110km
06:22
590m
590m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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3.9
(8)
34
riders
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
4.0
(2)
9
riders
46.1km
03:36
760m
760m
Hard gravel ride. Very good fitness required. You may need to push your bike for some segments of this route.
4.0
(1)
8
riders
44.3km
03:33
840m
850m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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a great cycle path through the railway tunnel - the tunnel is beautifully lit.
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A rest area at the train station. There's more than just tables and benches here, plus a nice place to linger.
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Pretty country road and very quiet.
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The place is nice with beautiful paths but watch out for punctures. Twice on the paths I got a flat tire because of large thorns.
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Very pleasant street where it is good to walk, especially when the PM has blocked the street, generally on weekends and during school holidays.
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Gravel biking around Grimbosq primarily features diverse terrain within the expansive Grimbosq Forest. You'll encounter mixed beech and oak woodlands, varied elevation changes along the Orne River valley, and natural water features like ponds and small tributaries. Some routes offer challenging steep slopes, while others provide beautiful paths along the quiet river.
Yes, komoot offers over 30 gravel biking routes around Grimbosq. These routes cater to various skill levels, though the majority, around 24, are classified as difficult, indicating significant elevation and technical sections.
Grimbosq Forest is rich in natural and historical sights. You can explore several arboretums, an 8.5-hectare animal park with wild species, and historical sites like the Former mine at May-sur-Orne. Many routes also offer views of the Sainte-Anne Viaduct and scenic points like the Viewpoint over the River Orne at Val de Viard, especially as Grimbosq is considered a gateway to Norman Switzerland.
Yes, many of the gravel biking routes in Grimbosq are designed as loops. For example, you can try the challenging The Rochers des Parcs – Clécy Viaduct loop from Grimbosq, which covers 63.6 km with significant elevation, or the Former mine at May-sur-Orne – Le bois de Bully loop from Les Godets, a 43.1 km route through woodlands and past historical sites.
The gravel biking trails around Grimbosq are generally considered challenging. Out of over 30 routes, 24 are rated as difficult, often featuring steep slopes and considerable elevation gain. There are also 8 moderate routes available for those seeking a less intense experience.
The Grimbosq area is highly rated by the komoot community, with an average score of 4.3 stars from over 25 reviews. Many users praise the diverse and well-maintained natural setting, highlighting the 'very physical' and 'very fun' terrain for cycling, and describing it as an 'exceptional playground'.
Absolutely. Beyond the natural beauty, Grimbosq offers glimpses into history. You can pass by the Former mine at May-sur-Orne, or see the Sainte-Anne Viaduct. The forest also features educational routes that provide insights into its historical and cultural significance.
The Grimbosq Forest is well-equipped with amenities, including ample parking areas, making it convenient to access the trails. Specific parking locations can often be found at the start points of individual routes or near popular access points to the forest.
While many routes are challenging, the Grimbosq Forest offers a variety of 'adapted trails' suitable for cycling. For a potentially gentler experience, consider exploring sections of the 'Voie Verte' (greenway/bikeway) near the former mine at May-sur-Orne, which connects towards Caen and typically offers flatter, more accessible paths.
The Grimbosq Forest is a popular destination for outdoor activities, and while specific regulations for dogs on gravel biking trails may vary, it's generally a dog-friendly area. Many trails are shared with walkers, so keeping your dog on a leash and ensuring they are well-behaved is usually recommended.
Grimbosq Forest is beautiful year-round, but spring and autumn often offer the most pleasant conditions for gravel biking. The mixed beech and oak woodlands provide stunning foliage in autumn, and milder temperatures in spring make for comfortable rides. Always check local weather conditions before heading out.
While the Grimbosq Forest itself is a natural area, the surrounding towns and villages, such as Thury-Harcourt or May-sur-Orne, offer cafes, pubs, and other dining options where you can refuel after your ride. It's a good idea to plan your route to pass through or end near these locations.


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