4.4
(313)
9,896
runners
26
runs
Jogging around Briis-Sous-Forges offers diverse natural landscapes within the Hurepoix region and Chevreuse Valley. The area features an extensive network of trails, including paths through the Bois de la Garenne and Bois Croulard, and along the Yvette River. Runners can expect varied terrain, from gentle riverside paths to routes with moderate elevation changes through wooded areas and open agricultural spaces.
Last updated: July 5, 2026
5.0
(2)
34
runners
14.0km
01:30
120m
120m
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
23
runners
53.6km
06:04
610m
610m
Hard run. Very good fitness required. Mostly accessible paths. Some sure footedness required.

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10
runners
6.70km
00:42
20m
20m
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
10
runners
6.28km
00:41
40m
40m
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
10
runners
10.3km
01:05
80m
80m
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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Great view when you are at the top of the viaduct!
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Church of Our Lady of the Assumption of Forges-les-bains. If you want more information, they have a website https://www.secteurlimours-catholique.fr/
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nice place to take a break and discover the panorama from this viaduct
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The Christmas market, very well known in the region, is held next to the church and attracts a lot of people, to the point that it is sometimes difficult to get around on weekends in December. But it can also give rise to refueling to warm up your belly 😆
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Typical of the Chevreuse valley
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Like the nearby Fauvettes viaduct, the Montjay tunnel once served as the old Paris-Chartres railway line. In the middle of the communal forest of Bures-sur-Yvette, it punctuates the straight and rolling line leading to the viaduct.
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Disused railway bridge once used to connect Paris to Chartres, it is now open to the public. The views it offers over the Chevreuse valley and the forest of Bures-sur-Yvette are magnificent. Crossing it while running increases the beauty of the landscape tenfold.
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This park owes its name to the bourgeois-style building present in the middle of its seven hectares of greenery. It is pleasant to run on its wide paths and along the Vaularon, a charming little stream that crosses it. Its basin also brings a little freshness.
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There are over 25 dedicated running routes around Briis-Sous-Forges, catering to various fitness levels. These trails explore the diverse natural landscapes of the Hurepoix region and the Chevreuse Valley.
Joggers in Briis-Sous-Forges will find a varied terrain, from gentle riverside paths along the Yvette to more challenging routes through extensive woodlands like the Bois de la Garenne and Bois Croulard. Many routes also traverse open agricultural spaces, offering a mix of surfaces and elevation changes.
Yes, Briis-Sous-Forges offers routes suitable for beginners. While many are moderate, you can find easier paths, particularly along the Yvette River, which provides a peaceful and relatively flat environment. Look for routes with minimal elevation gain for a gentler experience.
The routes often pass through significant natural areas such as the Bois de la Garenne and Bois Croulard. You might also encounter the scenic The Oak of Petit Launay or the 11 Remarkable Oaks of Méridon Forest. The area is also home to several tranquil ponds and lakes, including Trévoix Pond and Carouge Basin, offering picturesque views.
Absolutely. Many of the jogging routes around Briis-Sous-Forges are designed as loops, allowing you to start and finish at the same point. For example, the Forges-les-Bains Church loop from Briis-sous-Forges is a popular circular option, traversing local countryside and woodlands.
Yes, the region offers several family-friendly options, especially those with less elevation and well-maintained paths. The Bois de la Garenne, with its fitness trail, and the riverside paths along the Yvette are excellent choices for families looking for a pleasant run or walk together.
Many of the natural areas and trails in Briis-Sous-Forges, including the Bois de la Garenne and Bois Croulard, are generally dog-friendly. However, it's always recommended to keep your dog on a leash and check local signage for any specific restrictions, especially in protected natural zones.
The running routes in Briis-Sous-Forges are highly rated by the komoot community, with an average score of 4.5 stars. Reviewers often praise the diverse natural landscapes, the tranquility of the woodlands, and the well-maintained paths that offer a refreshing escape into nature.
For those seeking a longer challenge, Briis-Sous-Forges and its surroundings offer extensive routes. The Montjay Tunnel – Fauvettes Viaduct loop from Fontenay-lès-Briis, for instance, is a challenging 53 km route that explores a significant portion of the region, including the impressive Viaduc des Fauvettes.
Yes, many trailheads and access points to the running routes in Briis-Sous-Forges have designated parking areas. The town itself has preserved its rural charm, and parking is generally accessible near the main natural attractions and village centers, making it convenient to start your run.
Yes, the Janvry Fountain loop from Briis-sous-Forges is a popular moderate route that specifically explores the rural surroundings and passes by the notable Janvry Fountain, offering a pleasant point of interest during your run.
Briis-Sous-Forges is enjoyable for running year-round. Spring and autumn offer pleasant temperatures and vibrant natural colors, while summer provides lush green scenery. Even in winter, the preserved woodlands and paths can be beautiful, though conditions may vary.


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