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France
Ile-de-France
Sarcelles

Groslay

The best MTB trails around Groslay

4.4

(460)

2,011

riders

155

rides

Mountain bike trails around Groslay are primarily found within the expansive Montmorency Forest, which borders the town. This hilly forest features a varied terrain with significant elevation changes, characterized by a mix of oak, beech, birch, and Scots pine trees. The landscape includes undulating paths, streams, and small lakes, providing a diverse environment for mountain biking. The region offers a network of trails suitable for various skill levels.

Best mountain bike trails around Groslay

  • The most popular mountain bike trail…

Last updated: October 30, 2026

4.6

(10)

25

riders

#1.

Hunting Castle – Pond and Château de la Chasse loop from Groslay

31.7km

02:39

420m

420m

Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary.

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Moderate
Easy
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Moderate mountain bike ride. Good fitness required.

Moderate
Easy

Hard mountain bike ride. Good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.

Hard
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Tips from the Community

gerardt5
July 30, 2026, À éviter ce chemin est repris par les ronces

A hassle for me. The impression that it's more for cyclo-cross

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The singletrack is in good condition, first time I'm riding it. Nothing to report, it's easily rideable.

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Top for mountain biking

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Yoann
June 10, 2025, Château Conti

top

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Nice playground, climbs, descents but also flat and each circuit changes depending on the dry or muddy!!!

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Very small but very cute castle in the middle of the forest

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piloting

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Suard
March 3, 2025, Tour du Plumet

It's a shame that the forestry machines don't restore the site to its original state.

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Frequently Asked Questions

What kind of terrain can I expect on mountain bike trails around Groslay?

The mountain bike trails around Groslay are primarily located within the Montmorency Forest, offering a varied and hilly terrain. You'll encounter undulating paths, significant elevation changes, and a mix of oak, beech, birch, and Scots pine trees, providing picturesque and shaded routes. The forest also features streams and small lakes, adding to the natural beauty.

How many mountain bike trails are available near Groslay?

There are over 140 mountain bike trails available around Groslay, catering to a wide range of skill levels. This includes 51 easy routes, 86 moderate routes, and 9 more challenging options, ensuring there's something for every rider.

Are there any family-friendly mountain bike trails in the Montmorency Forest?

Yes, the Montmorency Forest offers several family-friendly mountain bike trails, particularly among the 51 easy routes available. These trails often feature less challenging terrain and shorter distances, perfect for a leisurely ride with the family. An example of an easy route is Towpath Epinay – Étang de Pêche loop from La Barre - Ormesson, which is 20.1 km long.

What are some notable landmarks or attractions I can see while mountain biking near Groslay?

While exploring the trails, you can encounter several interesting landmarks. The historic Pond and Château de la Chasse is a medieval building nestled within the forest. You might also discover traces of ancient remains like the Devil's Bridge and the 19th-century Plumet Tower. The forest itself is a natural attraction, with diverse wildlife and scenic views.

What do other mountain bikers enjoy most about the trails around Groslay?

The mountain bike trails around Groslay are highly rated by the komoot community, with an average score of 4.4 stars from over 300 reviews. Riders often praise the varied terrain, the beautiful forest scenery, and the network of trails that offer options for different ability levels. Over 1600 mountain bikers have used komoot to explore this area.

Can I reach the mountain bike trails near Groslay using public transport?

Yes, many trails in the Montmorency Forest are accessible from towns like Ecouen Ezanville and Deuil-la-Barre, which are typically served by public transport. This allows you to start your ride without needing a car. Always check local public transport schedules for the most up-to-date information.

Are there any circular mountain bike routes available?

Yes, many of the mountain bike routes around Groslay are designed as loops, offering circular experiences. For example, the View of Paris – Pond and Château de la Chasse loop from Deuil - Montmagny is a popular moderate 29.2 km circular path that offers scenic views and passes by the Château de la Chasse.

What is the best time of year to go mountain biking around Groslay?

The Montmorency Forest offers enjoyable mountain biking conditions throughout much of the year. Spring and autumn provide pleasant temperatures and beautiful foliage. Summer is also great, with the forest providing ample shade. While winter riding is possible, be mindful of potential muddy or icy conditions on trails, especially after rain or snow.

Are dogs allowed on the mountain bike trails in Montmorency Forest?

Generally, dogs are welcome in the Montmorency Forest, but it's important to keep them on a leash, especially given the presence of diverse wildlife such as deer, wild boar, foxes, and badgers. Always ensure your dog is under control and respect local regulations regarding pets in natural areas.

Where can I find parking for mountain biking in the Montmorency Forest?

Access points to the Montmorency Forest, particularly near towns like Groslay, Ecouen Ezanville, and Deuil-la-Barre, typically have designated parking areas. These spots provide convenient starting points for your mountain biking adventures into the forest. Look for signs indicating forest access or parking for visitors.

What are the most challenging mountain bike trails near Groslay?

While the majority of trails are easy to moderate, there are 9 difficult routes for experienced mountain bikers seeking a challenge. These routes feature more technical sections and significant elevation changes within the hilly Montmorency Forest terrain. One example of a moderate trail with varied terrain is Batterie de Blémur – Single uphill loop from La Barre - Ormesson.

Are there any trails with good viewpoints of the surrounding area?

Yes, some trails offer excellent viewpoints. For instance, the View of Paris – Pond and Château de la Chasse loop from La Barre - Ormesson is a moderate 28.1 km route that provides scenic views, including glimpses towards Paris, as you navigate through the forest.

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