4.5
(167)
748
riders
54
rides
No traffic gravel bike trails around Les Ulis are situated in the Essonne department, offering access to natural landscapes and green spaces. The region is characterized by its proximity to the Parc Naturel Régional de la Haute Vallée de Chevreuse, providing varied terrain, extensive forest networks, and river valleys. Gravel biking here involves a mix of wide paths and winding trails, often incorporating historic areas and natural features. This area serves as a gateway to diverse off-road cycling experiences south of Paris.
Last updated: July 5, 2026
4.5
(11)
47
riders
24.5km
01:14
80m
80m
Easy gravel ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.
3.0
(2)
21
riders
47.8km
03:04
430m
430m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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4.7
(10)
44
riders
27.6km
01:34
230m
230m
Hard gravel ride. Good fitness required. You may need to push your bike for some segments of this route.
4.8
(4)
18
riders
69.9km
04:12
660m
660m
Hard gravel ride. Very good fitness required. You may need to push your bike for some segments of this route.
4.6
(5)
17
riders
37.9km
02:14
280m
280m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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Popular around Les Ulis
Beautiful castle in the village of Janvry
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Best done early in the morning as it is very busy during the day.
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An early morning outing to enjoy all the wildlife around these lakes.
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Pretty building at Bordes which forms the entrance to the castle.
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superb waterfalls, superb associative hostel with exhibition, café restaurant on the banks of the torrent, warm welcome
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It's OK on mountain bikes, some hot sections on gravel
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a portion of the track has been closed since March 31, 2025 (for 1 month)
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You can discover over 50 dedicated no-traffic gravel bike trails around Les Ulis. These routes offer a fantastic way to explore the region's natural beauty, particularly within the nearby Parc Naturel Régional de la Haute Vallée de Chevreuse.
Yes, there are several easy options perfect for beginners or families. For instance, the Saulx Basin – Saulx-les-Chartreux Basin loop from Palaiseau is an easy route that provides a pleasant, traffic-free experience. The Parc Nord in Les Ulis also offers well-maintained paths suitable for leisurely rides.
The terrain varies, offering a diverse gravel biking experience. You'll find everything from wide, well-maintained paths to winding forest trails. The Parc Naturel Régional de la Haute Vallée de Chevreuse, a primary destination, features extensive forest networks and river valleys, providing a mix of surfaces suitable for gravel bikes.
Absolutely. The region is rich in natural beauty. You might encounter impressive structures like the Buc Aqueduct (arcades), or serene spots like the Saclay Pond, which is an ornithological reserve. Many routes also pass through the picturesque landscapes of the Chevreuse Valley.
Yes, many of the no-traffic gravel bike trails are designed as loops, allowing you to start and finish at the same point. An example is the Saulx Basin – Janvry Fountain loop from Palaiseau - Villebon, which offers a substantial circular ride through varied landscapes.
Spring and autumn generally offer the most pleasant conditions for gravel biking in Les Ulis, with mild temperatures and beautiful scenery. However, the extensive forest networks provide good shade in summer, and many trails are accessible in winter, though some sections might be muddy after rain or have challenging conditions.
For experienced riders seeking a challenge, routes like the Château des Bordes – Côte de Senlisse loop from Courcelle-sur-Yvette offer significant distances and elevation changes. The Parc Naturel Régional de la Haute Vallée de Chevreuse is known for routes that can include challenging ascents and descents.
The region is dotted with historical sites. Within the Chevreuse Valley, you can find charming villages, castles, and manors. While not directly on every gravel trail, routes often pass near or offer detours to places like the Château de Saint-Jean de Beauregard or the Château de Breteuil, showcasing the rich cultural heritage.
The komoot community highly rates the gravel biking experience around Les Ulis, with an average score of 4.36 stars. Riders frequently praise the quiet, traffic-free nature of the trails, the beautiful natural surroundings, and the variety of routes available for different skill levels.
Yes, you can find routes that incorporate interesting architectural features. For example, the Montjay Tunnel – Fauvettes Viaduct loop from Orsay-Ville takes you past the impressive Fauvettes Viaduct, offering a unique blend of natural and man-made scenery.
Yes, several routes exceed 50km, providing extensive rides for those looking for longer adventures. The Viaduc de la Prédécelle – Greenway of the Pays de Limours loop from La Hacquinière is a great example, offering over 50km of varied terrain.


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