4.5
(183)
1,128
riders
97
rides
No traffic gravel bike trails around Casson are characterized by a landscape of gentle terrain, often following waterways and rural paths. The region features a network of routes that traverse open countryside and connect various points of interest, including locks and small ports. Elevation changes are generally modest, making the area suitable for accessible gravel biking experiences.
Last updated: July 3, 2026
5.0
(6)
47
riders
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
4.1
(7)
29
riders
39.8km
02:04
120m
120m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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3.0
(1)
24
riders
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
18
riders
Hard gravel ride. Good fitness required. You may need to push your bike for some segments of this route.
4.5
(4)
20
riders
46.5km
02:39
160m
160m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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Popular around Casson
Nicknamed the «pearl of the Erdre», the port of Sucé-sur-Erdre is an unmissable charming stopover where lively terraces and pleasure boats coexist in a green and peaceful setting. It is the ideal starting point for strolling along the quays or taking a trip on the water, to discover one of the most beautiful rivers in France.
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Even at 6 a.m. super pleasant and very smooth
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After a few kilometers, stopping at this guinguette is a pure pleasure of relaxation
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Very comfortable track to do, the trees provide shade and freshness, freshness also provided (on certain locks) to enjoy a very refreshing drink
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a nice pleasant path
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Often going out at the end of the day to appreciate the landscape and this straight line
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Also known as the "basin," the port of Nort-sur-Erdre is a lively, historic neighborhood that's a great place to stop off. At the foot of the Saint-Georges Bridge, which separates the wild Erdre from the navigable Erdre, the marina is now a popular place for walking and fishing. Free Wi-Fi access near the Tourist Office Contact the harbor master's office for an extended stay; the first two nights are free. Open year-round Type of facility: Slipway - River stopover - Pontoon - Marina Payment methods: Bank and postal checks Access location: Nort-sur-Erdre train station: 1 km Languages spoken: French Facilities: Picnic area - Restrooms - Services - Playground
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The construction of Port Mulon Castle dates back to the 19th century. Of its various owners, it primarily preserves the memory of Prosper Coinquet. Born in 1825 in Nantes, Prosper Coinquet was mayor of Nort-sur-Erdre twice, from 1859 to 1874, and again from 1877 to 1892. He was also a general councilor for the Loire-Inférieure department from 1883 to 1887. This lawyer by training was also a great lover of the arts. He was himself a musician and poet. He composed numerous songs and waltzes that enjoyed considerable regional success. He dedicated one of his waltzes, simply titled "Le port Mulon," to his castle. Prosper Coinquet chaired or was a member of several musical and literary societies. It was therefore only natural that he decided to make the château the setting for evenings dedicated to the arts. Readings and concerts were held in the park or in the reception hall. Nantes artists invited to perform came by way of the Erdre River. The setting, its tranquil riverbank, and its magnificent park wooded with rare species, thus retain the imprint of the music that was performed there until 1892. That year, Prosper Coinquet died at home. Since 2006, music has once again resonated in the park's foliage. Indeed, at the end of June, the venue hosts the La Nuit de L'Erdre festival. Today, the Château de Port Mulon and its park are managed by the municipality of Nort-sur-Erdre. A reception hall can be rented from the town hall, whether for private or professional events. You can also take yoga classes at the château. As for the Nantes Atlantique improvisation league, it has made it its headquarters. Finally, since 2017, the place has become a coworking space whose success continues unabated. As for the park, it's a place where, in addition to enjoying its vast spaces and magnificent trees, you can indulge in an orienteering course. Twenty markers are scattered throughout, and by exploring them, you'll learn much more about the treasures it contains. During your stroll, you'll undoubtedly encounter riders who enjoy riding their horses there. And if, at nightfall, you spot the fluttering shadows of numerous bats, don't be surprised. For several years, the castle and grounds have been havens for these nocturnal animals.
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There are over 90 no-traffic gravel bike trails around Casson, offering a wide range of options for different skill levels. You'll find 11 easy routes, 49 moderate routes, and 32 difficult routes to explore.
The komoot community highly rates the gravel biking experience in Casson, with an average score of 4.56 out of 5 stars. Reviewers often praise the diverse landscapes, from high desert terrain to pine forests, and the opportunity to enjoy routes with minimal traffic.
Yes, Casson offers several easy, traffic-free gravel routes perfect for beginners. A great option is the Tindière Lock – Rabinière lock loop from Casson, which is 38.26 km long with minimal elevation gain, providing a pleasant and accessible ride.
Absolutely. Many of the no-traffic gravel routes in Casson are circular, allowing you to start and end at the same point. For example, the Lock 11 — La Prée – Port of Blain loop from Écluse de la Rabinière is a moderate 43.29 km circular route that offers a scenic ride.
The gravel trails around Casson offer a diverse range of landscapes. You can expect to ride through high desert terrain, alongside riparian areas, and into pine forests and mountain foothills, providing a varied and scenic backdrop for your rides.
Yes, several routes pass by interesting landmarks and natural features. You might encounter highlights such as the Sucé-sur-Erdre marina, the Tindière Lock, or enjoy the View of the Isac dam and the Nantes-Brest canal from Bout du Bois. The Port of Nort-sur-Erdre is also a point of interest along some trails.
Yes, for experienced riders seeking a challenge, Casson offers several difficult no-traffic gravel routes. The Haut-Gesvres Castle – Dirt path loop from Grandchamp-des-Fontaines is a demanding 46.82 km route with significant elevation gain, perfect for pushing your limits.
While specific seasonal details for Casson aren't provided, regions with diverse landscapes like this often offer good riding conditions in spring and autumn when temperatures are milder. Summer can be great for higher elevations, and winter might be suitable for lower, less exposed trails, depending on local weather patterns.
Yes, some routes in the broader region of Casson offer scenic views of water bodies. For instance, you can find trails that provide access to the Carson River or offer extensive views of Lake Tahoe, particularly on routes that ascend towards the Sierra Nevada mountains.
While the specific routes listed focus on natural landscapes, the wider region around Casson, particularly areas like Carson City, offers bike-friendly streets for exploring historic districts. You might find opportunities to combine your gravel rides with visits to landmarks along the Kit Carson Trail, featuring 1800s-era Victorian-style homes, museums, and churches.
One of the longer no-traffic gravel routes you can explore is the Port of Nort-sur-Erdre – Sucé sur Erdre bridge and port loop from Grandchamp-des-Fontaines. This difficult route spans 58.66 km, offering an extended adventure through varied terrain.


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