4.4
(258)
870
riders
97
rides
Gravel biking around Les Ulis features a landscape characterized by rolling terrain, river valleys, and a network of greenways. The region offers a mix of natural paths and converted railway lines, often incorporating features like viaducts and tunnels. Elevations are generally moderate, with routes typically gaining between 150 and 350 meters. The area includes extensive forest networks and charming villages, providing diverse terrain for gravel cycling.
Last updated: October 19, 2026
4.8
(16)
53
riders
29.9km
01:45
220m
220m
Hard gravel ride. Good fitness required. You may need to push your bike for some segments of this route.
4.5
(4)
17
riders
36.8km
02:07
270m
270m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

4.7
(6)
13
riders
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
3.0
(1)
9
riders
46.4km
02:51
530m
530m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
4.7
(3)
9
riders
43.4km
02:29
370m
370m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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a portion of the track has been closed since March 31, 2025 (for 1 month)
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Unmissable Gravel rides to reach Choisel
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Pretty castle well glimpsed at the heart of a beautiful gravel ride between Choisel and St Rémy
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very nice gravel descent from Boullay-les-Troux to St Rémy
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[In Advent] "we hear in the Gospel the beginning of the ministry of Saint JEAN BAPTIST. He appears in the desert and calls people to conversion so that they may prepare for the coming of the Lord. His call reminds us that Advent is not only a time of waiting, but also of interior preparation. "Prepare the way of the Lord, make straight his paths" (Luke 3:4). John's message challenges us to examine our lives. What "rough paths" and "crooked roads" are there in our hearts? Where have we perhaps distanced ourselves from God or lost sight of our fellow human beings? John invites us to remove these obstacles and reorient our lives. But his call has not only a personal dimension, but also a social one: the way of the Lord is a way of justice, peace and reconciliation. When we pave the way of the Lord, we bring light into the darkness of the world and hope into the hearts of people." (Text: Michael Inden, Diocesan President of the KAB in the Archdiocese of Cologne)
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Great view when you are at the top of the viaduct!
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There are over 140 gravel bike routes recorded in the Les Ulis region on komoot. These routes offer a diverse range of experiences, from easy paths to more challenging trails, catering to various skill levels.
Yes, Les Ulis offers several easy gravel bike trails perfect for beginners or those looking for a relaxed ride. Routes like the Lozère Lake – Bassin de Coupières loop from Lozère are generally flatter with moderate elevation gains, making them accessible for less experienced riders.
Gravel bike routes in Les Ulis typically range from around 18 to 28 miles (30 to 45 km) in distance. Durations vary depending on the route and rider's pace, but most can be completed within 2 to 4 hours. For example, the Montjay Tunnel – Fauvettes Viaduct loop from Orsay-Ville is about 18.6 miles (30 km) and takes around 1 hour 46 minutes.
Absolutely. While many routes are accessible, there are also more advanced gravel trails for experienced riders seeking a challenge. These routes often feature greater elevation gains and more technical sections. The region's diverse terrain ensures there's something for every skill level.
The best time for gravel biking in Les Ulis is generally from spring through autumn (April to October). During these months, the weather is typically mild and pleasant, and the trails are in good condition. While winter riding is possible, some paths might be muddy or require more robust gear.
Many of the gravel bike routes around Les Ulis are designed as loops, offering convenient circular journeys. This allows riders to start and finish at the same point without retracing their steps. An example is the Greenway of the Pays de Limours – Fauvettes Viaduct loop from La Hacquinière.
The gravel trails around Les Ulis often feature a mix of natural paths, greenways, and engineered structures. You can expect to encounter notable viaducts like the Fauvettes Viaduct and the Viaduc de la Prédécelle, as well as scenic paths along lakes and through countryside. The region is characterized by rolling terrain and river valleys.
The komoot community highly rates gravel biking in Les Ulis, with an average score of 4.4 stars from over 150 reviews. Riders often praise the varied terrain, the network of greenways, and the scenic paths that incorporate features like viaducts and tunnels, offering a unique blend of natural beauty and interesting structures.
Yes, the region around Les Ulis is home to several historical sites and castles. You might find yourself cycling near places like La Madeleine Castle or Méridon Castle, offering interesting points of interest to explore off the bike.
Several gravel routes pass by or near beautiful lakes and ponds, providing picturesque views and potential spots for a break. Notable examples include the Ponds of Parc des Côtes Montbron, Trévoix Pond, and Beauséjour Lake, which are popular highlights in the area.
Many starting points for gravel routes in the Les Ulis area are accessible via public transport, particularly train stations in nearby towns like Orsay-Ville. It's advisable to check local public transport schedules and bike carriage policies for specific routes before planning your trip.
Parking is generally available in the towns and villages that serve as starting points for many gravel routes, such as Orsay-Ville or Gometz-le-Châtel. Look for public parking areas or designated spots near trailheads. Always ensure you park responsibly and check for any local restrictions.


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