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France
Ile-de-France
Pontoise

Boissy-L'Aillerie

The best MTB trails around Boissy-L'Aillerie

4.4

(517)

2,720

riders

228

rides

Mountain biking around Boissy-L'Aillerie offers a network of trails primarily following the Oise Riverbanks and traversing the surrounding countryside. The region features varied terrain, including paths along waterways, through agricultural lands, and past historical sites like castles and mills. Elevation gains are generally moderate, providing accessible routes for different skill levels.

Best mountain bike trails around Boissy-L'Aillerie

  • The most popular mountain bike trail is Oise Riverbanks – Axe Majeur footbridge loop from Cergy - Saint-Christophe, a 24.6 miles (39.6…

Last updated: May 8, 2026

4.4

(40)

150

riders

#1.

Oise Riverbanks – Axe Majeur footbridge loop from Cergy - Saint-Christophe

39.0km

02:35

210m

210m

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

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Moderate

Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.

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

Moderate

Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.

Moderate

Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.

Moderate
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Tips from the Community

Olivier
October 22, 2025, Château d’Auvers

Absolutely beautiful, eyes filled with this landscape that puts a smile on your lips.

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Olivier
October 22, 2025, Port Cergy

At the bend in the path, the entrance to Port Cergy appears, surprising...

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Olivier
October 18, 2025, Bords de l'Oise

landscaped and easy on the eye

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Olivier
October 18, 2025, Bel endroit

climb

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Olivier
October 18, 2025, Ètang de Cayennes

a wonderful moment

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So a very steep climb over the rocks, which ends with steep drops. Good luck!

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Is it allowed to cross? Not sure... I did, I was looked at and greeted. But not blocked. However, it's not easy to get out on the other side, the exit is closed. It's possible to go through a small door.

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ah this bridge

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Frequently Asked Questions

How many mountain bike trails are there in Boissy-L'Aillerie?

There are over 230 mountain bike trails available around Boissy-L'Aillerie, offering a wide variety of options for different skill levels and preferences.

Are there mountain bike trails suitable for beginners in Boissy-L'Aillerie?

Yes, Boissy-L'Aillerie offers a good selection of trails for beginners. There are 75 easy mountain bike routes, many of which follow the relatively flat Oise Riverbanks, providing a gentle introduction to the area's cycling.

Are there challenging mountain bike routes for advanced riders?

While the region is generally known for its moderate terrain, there are 9 more difficult mountain bike routes around Boissy-L'Aillerie for those seeking a greater challenge. These routes often feature more significant elevation changes and technical sections.

What is the best time of year for mountain biking in Boissy-L'Aillerie?

The spring and autumn months are generally ideal for mountain biking in Boissy-L'Aillerie. The weather is typically mild, and the natural landscapes along the Oise River and through the countryside are particularly beautiful. Summer can also be pleasant, though it's advisable to ride earlier in the morning or later in the afternoon to avoid the midday heat.

Are there circular mountain bike trails around Boissy-L'Aillerie?

Yes, many of the mountain bike trails in the area are circular, allowing you to start and finish at the same point. For example, the Oise Riverbanks – Axe Majeur footbridge loop from Cergy - Saint-Christophe is a popular option that brings you back to your starting point.

What makes the mountain bike trails in Boissy-L'Aillerie scenic?

The trails in Boissy-L'Aillerie are scenic due to their diverse landscapes. You'll find routes that follow the picturesque Oise Riverbanks, wind through open countryside, and pass by historical sites such as castles and mills. The Axe Majeur footbridge – Oise Riverbanks loop from Cergy-le-Haut offers views of both the river and modern architecture.

Can I bring my dog on the mountain bike trails in Boissy-L'Aillerie?

Many of the trails in the Boissy-L'Aillerie region are suitable for dogs, especially those that traverse open countryside and riverbanks. However, it's always recommended to keep your dog on a leash, especially when passing through agricultural areas, near livestock, or in more populated sections, and to check local regulations for specific areas.

Are there places to eat or drink near the mountain bike trails?

Yes, given the proximity to towns and villages along the Oise River, you'll find various cafes and restaurants. Many routes pass through or near communities where you can stop for refreshments. It's a good idea to plan your route to include a stop in a village like Cergy or Osny.

What interesting landmarks can I see while mountain biking in Boissy-L'Aillerie?

The trails often lead past historical and architectural landmarks. You can encounter sites like the Axe Majeur footbridge, the Château de Théméricourt, and the Pavilion of Love in Neuville-sur-Oise. The La Villette Castle – Le Moulin de Théméricourt loop specifically highlights some of these historical points.

Are there any natural sights to explore on the mountain bike trails?

Absolutely. The region boasts several natural points of interest. You can ride near the Confluence of the Seine and the Oise, explore the Auversian Geological Site, or enjoy views from the View of the Vexin. The trails often integrate these natural elements into the riding experience.

What do other mountain bikers enjoy about the trails in Boissy-L'Aillerie?

The mountain bike trails around Boissy-L'Aillerie are highly rated by the komoot community, with an average score of 4.4 stars from over 500 reviews. Riders often praise the varied terrain, the scenic riverbank paths, and the opportunity to explore both natural landscapes and historical sites. The accessibility for different skill levels is also frequently highlighted.

How long are the mountain bike trails near Boissy-L'Aillerie?

The mountain bike trails in the area vary in length. Many popular routes range from approximately 30 to 45 kilometers, taking between 2.5 to 3.5 hours to complete. For example, the Banks of the Oise River – Oise Riverside Walk loop from Osny is about 46 kilometers long.

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