4.4
(504)
2,183
riders
239
rides
Mountain bike trails around Sermaise offer diverse terrain through forested areas and river valleys in both the Essonne and Loiret departments of France. The region features a mix of wooded trails, singletracks, and open fields, providing varied landscapes for off-road cycling. While not alpine, the valleys within Île-de-France can present some steep sections, adding challenge to routes. This area is characterized by its natural scenery, including woodlands, agricultural plains, and riverbanks.
Last updated: May 18, 2026
4.5
(14)
54
riders
51.0km
04:10
510m
510m
Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary.
4.0
(6)
14
riders
43.8km
02:49
210m
210m
Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary.

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4.6
(5)
10
riders
23.5km
01:48
210m
210m
Moderate mountain bike ride. Great for any fitness level. Advanced riding skills necessary.
4.5
(4)
8
riders
41.8km
03:23
410m
410m
Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary.
4.3
(3)
7
riders
28.3km
02:22
350m
350m
Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary.
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nice but watch out for the cobblestones
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You think you're in the middle of the countryside, but you come across a RER C station! ☹️ Fortunately there is an underground passage to cross the tracks from below, and quickly find the forest and fields.
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In the heart of the Dourdan national forest, this trail is a space for walking but also for learning. Discover the different species of trees present on the site, admire the flora thanks to the botanical plaques and learn more about the fauna of the forest. Then, have fun in the labyrinth and rest on the tables and benches present along the route. Plan 30 minutes of walking there and back and 30 minutes of discovery. The adapted surface allows the circulation of strollers and wheelchairs, the tables can also accommodate people with reduced mobility. The car park has a space reserved for people with reduced mobility.
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a crossroads like so many others without any information...
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Like many crossroads in the forest, there is a post but no indication...
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From the town hall of Roinville, going up to the plateau via rue des Vignes, you should not miss the fortified farm of Châteaupers, a former fortified stronghold built in the 14th century, and its square tower. A dungeon which served as a watchtower in the Middle Ages: the watchman sounded his horn when he saw looters coming from the Orge valley, and the inhabitants ran to take refuge inside. The moat, partially filled in, and the drawbridge have disappeared, but Châteaupers has retained its original shape (a quadrilateral) and its medieval spirit. In the 16th century, the farm was brought as a dowry to the lord of Marais, by the daughter of the castellans of Villeconin. A tapestry, kept at the Cluny Museum, and a pencil portrait kept at the Cabinet des Estampes represent her. It is under the name of Lady of Chateaupers that she is designated in the collection of pencil portraits of the National Library. We can now discover the farm from the inside: the stately home, restored according to the rules of the art, has recently been transformed into a rural gîte. The opportunity to follow in the footsteps of Rachel de Cochefilet, the most illustrious mistress of these places, since she was the wife of a certain Sully, minister of Henri IV.
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There are over 230 mountain bike trails around Sermaise, offering a wide variety of options for different skill levels and preferences. The komoot community has explored these routes over 2400 times.
The terrain around Sermaise is diverse, featuring a mix of wooded trails, singletracks, and open fields. You'll find routes through forests like Saint-Arnoult and Dourdan, along river valleys, and across agricultural plains. While not alpine, some valleys within the Île-de-France region can present steep sections, adding challenge to certain routes.
Yes, Sermaise offers a good selection of trails suitable for beginners. There are 46 easy routes that traverse fields and less challenging wooded paths, perfect for those new to mountain biking or looking for a relaxed ride.
Many trails in Sermaise pass by interesting natural features and landmarks. You can encounter various lakes such as Trévoix Pond, Lac d'Olainville, and Les Deux Mares. Additionally, you might discover unique geological formations like the Preserved Sand Quarry or the intriguing Caves of Sermaise.
Yes, some routes will take you past historical points of interest. For example, the Lac d'Olainville – Baville Castle loop from Saint-Chéron leads past Château du Marais. The Medieval town of Dourdan – Fishing pond loop from Sermaise also takes you through the historic town of Dourdan.
The mountain bike trails around Sermaise are highly regarded by the komoot community, holding an average rating of 4.4 stars from over 570 reviews. Users often praise the varied terrain, the peaceful forested sections, and the opportunities to explore charming French countryside.
Yes, with 46 easy routes available, many are suitable for families. These trails often feature gentler gradients and pass through pleasant woodlands and open fields, providing a relaxed experience for all ages. Look for routes described as 'easy' on komoot for the best family options.
Generally, dogs are welcome on many outdoor trails in the Sermaise region, especially in forested areas and on less crowded paths. However, it's always recommended to keep them on a leash, particularly in nature reserves or agricultural areas, and to check local signage for any specific restrictions.
While specific parking information for every trailhead isn't always available, the Sermaise area, being popular for outdoor activities, typically offers parking options near common starting points for trails, especially in or near villages and larger forest entrances. It's advisable to check the route details on komoot for specific parking suggestions.
Sermaise is located in the Essonne department, near Paris, and also has a counterpart in Loiret. Public transport options, such as regional trains (RER) and local buses, can connect you to towns like Saint-Chéron or Dourdan, which serve as good starting points for many trails. From these towns, you might need to cycle a short distance to reach the trailheads. Always check current schedules and routes for the most up-to-date information.
Generally, no specific permits are required for mountain biking on public trails in the Sermaise region. However, always respect private property, stay on marked trails, and be mindful of local regulations, especially in protected natural areas or during hunting seasons.
Spring and autumn are often considered the best times for mountain biking in Sermaise, offering pleasant temperatures and beautiful scenery. Summer can also be enjoyable, especially in the shaded forest sections, but be prepared for warmer weather. Winter riding is possible, but some trails might be muddy or slippery, so appropriate gear is recommended.
Yes, the towns and villages surrounding Sermaise, such as Saint-Chéron and Dourdan, offer various amenities including cafes, restaurants, and accommodation options. These places provide convenient spots to refuel and relax after your ride, or to stay overnight to explore more of the region.


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