4.1
(16)
51
riders
15
rides
No traffic gravel bike trails around Culin offer a network of routes primarily featuring greenways, ponds, and gentle hills, providing varied terrain for gravel cyclists. The region's landscape includes features such as the Bourbre Greenway and various water bodies like Étang de Chalignieu and Three Waters Pond. These routes often incorporate loops that navigate through the local countryside, connecting different natural and semi-natural areas. The elevation gains are moderate, making the area suitable for diverse gravel biking experiences.
Last updated: October 9, 2026
3.5
(4)
9
riders
50.2km
03:20
630m
630m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
4
riders
50.4km
03:18
500m
500m
Hard gravel ride. Very good fitness required. You may need to push your bike for some segments of this route.

7
riders
28.2km
01:37
140m
140m
Easy gravel ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.
3.8
(6)
10
riders
34.9km
02:38
530m
530m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
3.0
(3)
4
riders
42.7km
03:04
610m
610m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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The "Trois Eaux" designation traditionally refers to the three distinct sources or supply networks (coming from wetlands, runoff from surrounding hills, and local springs) that join to form and maintain the level of this pond.
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The existence of the church is formally attested from 1113 in the cartulary of the temple of Vaulx. It initially served as a parish church. Labelled «Patrimoine en Isère», it is today a major venue for artistic and cultural exhibitions managed by a local association.
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It formerly depended on the domain of the Montbaly (or Monbaly) castle. Its primary function, however, remains uncertain and fuels several hypotheses: A pleasure pavilion (or "garden folly") for the castle owners. A hunting rendezvous point.A sounding box used to relay horn calls. An old postal relay station or a place of contemplation.
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The Voie Verte de la Bourbre is a secure development of about 8.5 kilometers reserved for non-motorized travel (bicycles, pedestrians, strollers, rollerblades). Managed by the CAPI (Communauté d'Agglomération de la Porte de l'Isère), it pleasantly follows the Bourbre river and today connects the towns of Bourgoin-Jallieu, L'Isle-d'Abeau and Vaulx-Milieu.
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A pretty chapel, with a water point. A deceased woman, born in 1795, is buried there
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Small isolated building in the place called Villieu (former islet in the heart of the Bourgoin marshes), consisting of a small nave lit by a bay on each side and extended by an apse with a lower height than the nave. The facade is pierced by an entrance door surmounted by a basket-handle lintel bearing the inscription 1893 / NOTRE DAME DE VILLEU. https://recensement.patrimoine-religieux.fr/eglises_edifices/38-Isere/38415-Saint-Marcel-Bel-Accueil/150630-ChapelledeVillieu
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A lovely restored and open chapel
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a pretty chapel
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There are 9 dedicated no traffic gravel bike trails around Culin. These routes offer a variety of experiences, from easy rides to more challenging adventures.
The no traffic gravel trails in Culin range in difficulty. You'll find 2 easy routes, 5 moderate routes, and 2 difficult routes, ensuring options for various skill levels. For example, the Bourbre Greenway – Montée du Loup loop from Bourgoin-Jallieu is rated as easy, while the Étang de Chalignieu – Crémieu–Morestel Greenway loop from L'Isle-d'Abeau is considered difficult.
Yes, many of the no traffic gravel bike trails in Culin are designed as loops. For instance, you can enjoy the Col du Croupion – Bourbre Greenway loop from L'Isle-d'Abeau or the Three Waters Pond – Pavilion of the Four Winds loop from L'Isle-d'Abeau, both offering scenic circular rides without traffic.
While riding the no traffic gravel trails around Culin, you can discover several interesting points. Highlights include the serene Étang de la Rosière, the historic Chapelle Sainte-Anne, and the picturesque Bourbre Greenway itself, which is part of several routes.
For families, the easier routes are generally more suitable. The Bourbre Greenway – Montée du Loup loop from Bourgoin-Jallieu is an easy-rated option that could be a good choice for a family outing, offering a manageable distance and elevation gain on traffic-free paths.
The area is highly rated by the komoot community, with an average score of 3.9 stars. Reviewers often praise the quiet, traffic-free nature of the routes and the opportunity to explore the local landscape away from busy roads.
Advanced riders looking for longer, more challenging no traffic gravel routes will find options like the Enter – Route de Beausoleil loop from Bourgoin-Jallieu. This route covers over 43 km with significant elevation gain, providing a demanding yet rewarding experience.
Many of the routes start from towns like L'Isle-d'Abeau and Bourgoin-Jallieu. While specific parking information for each trailhead isn't detailed, these towns typically offer public parking facilities where you can leave your vehicle before starting your ride.
Given the general climate of the region, spring and autumn typically offer the most pleasant conditions for gravel biking in Culin, with milder temperatures and beautiful scenery. Summer can also be enjoyable, though it's advisable to ride earlier in the morning or later in the afternoon to avoid the midday heat.
Yes, several routes incorporate or follow greenways. The Bourbre Greenway is a notable feature in the area and is part of routes like the Bourbre Greenway – Montée du Loup loop from Bourgoin-Jallieu, providing smooth, traffic-free sections ideal for gravel biking.


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