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France
Ile-de-France
Pontoise

Forêt De L'Isle-Adam

The best MTB trails in Forêt De L'Isle-Adam

4.3

(726)

3,587

riders

393

rides

Mountain biking in Forêt De L'Isle-Adam is characterized by its diverse terrain and extensive network of trails. This sprawling forest, located just outside Paris, features lush woodlands, hidden ponds, and paths along the Oise River. Riders can expect varied elevation changes, from gentle slopes to more challenging climbs, making it suitable for different skill levels.

Best mountain bike trails in Forêt De L'Isle-Adam

  • The most popular mountain bike trail is Remarkable trees – Forest Climb loop from Nerville-la-Forêt, an 18.1 miles (29.1 km) trail that takes 1 hour 58 minutes to complete. This moderate route features significant elevation gain through dense woodland.
  • Another top favourite among local mountain bikers is La Butte des Landes – Cycle route along the castle loop from Nerville-la-Forêt, an easy 8.3 miles (13.4 km) path. This route offers a gentle ride through scenic landscapes, ideal for any fitness level.
  • Local mountain bikers also love the Viewpoint over the forest – High-speed descent loop from Montsoult - Maffliers, a 16.9 miles (27.2 km) trail leading through varied terrain, often completed in about 2 hours 13 minutes.
  • Mountain biking in Forêt De L'Isle-Adam is defined by dense woodlands, hidden ponds, and historical sights like the Étoile de Conti. The network offers options for different ability levels, from easy paths to challenging routes with significant elevation changes.
  • The routes in Forêt De L'Isle-Adam are highly rated by the komoot community with an average score of 4.3 stars from over 600 reviews. More than 3000 mountain bikers have used komoot to explore Forêt De L'Isle-Adam's varied terrain.

Last updated: June 2, 2026

5.0

(2)

3

riders

#1.

Remarkable trees – Forest Climb loop from Nerville-la-Forêt

29.2km

01:59

350m

350m

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

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Moderate

Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.

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

Moderate

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

Moderate

Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.

Easy
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Popular around Forêt De L'Isle-Adam

Road Cycling Routes in Forêt De L'Isle-Adam

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Running Trails in Forêt De L'Isle-Adam

Cycling in Forêt De L'Isle-Adam

Hiking in Forêt De L'Isle-Adam

Tips from the Community

Suard
March 3, 2025, belle endroit bien sec

In good weather, it's great

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What is to be remembered from this route is the passage through the Carnelle forest. However, there are too many roads on the Isle Adam and along the Oise. No particular difficulty.

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Vince
September 15, 2024, Étang des Trois Sources

The Trois Sources pond is a beautiful place built on a former quarry which breathes nature and where you can observe many birds, moorhens, swans, ducks and barnacle geese.

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Discover the picturesque charm of the banks of the Oise at L'Isle-Adam. Stroll along the tranquil riverbanks, where nature meets history. Stroll along the shaded paths, enjoy the welcoming terraces and let yourself be seduced by the bucolic landscapes. Isle-Adam is an invitation to relaxation and discovery, where every moment is an enchanted break. Come breathe the fresh air, admire the gently gliding barges and savor the sweetness of life by the water.

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Small, slightly technical uphill single which digs, which digs with the years. You just have to release the brakes when going downhill 🤣

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pretty lake hidden in the middle of the forest

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Access point on the north side of the Montmorency forest (Béthemont-la-Forêt 95) it's a steep climb to arrive on the plateau and have access to the slopes groomed by the ONF Access via Map: https://maps.app.goo.gl/hUVJH1KrpihtY4po9 3745+CRH Béthemont-la-Forêt

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Frequently Asked Questions

How many mountain bike trails are available in Forêt De L'Isle-Adam?

Forêt De L'Isle-Adam offers a vast network of mountain bike trails, with over 380 routes recorded on komoot. These trails cater to various skill levels, including 123 easy routes, 242 moderate routes, and 18 challenging routes for experienced riders.

What kind of terrain can I expect when mountain biking in Forêt De L'Isle-Adam?

The forest features diverse terrain, from lush woodlands and dense paths to trails running along the Oise River. You'll encounter varied elevation changes, including gentle slopes and more challenging climbs. Some routes may even require pushing your bike on steeper sections. The area is known for its well-marked trails.

Are there any family-friendly mountain bike routes in Forêt De L'Isle-Adam?

Yes, Forêt De L'Isle-Adam has numerous family-friendly options. Many easy routes are suitable for all fitness levels. For example, the La Butte des Landes – Cycle route along the castle loop from Nerville-la-Forêt is an easy 13.4 km path that offers a gentle ride through scenic landscapes, perfect for families.

Can I bring my dog mountain biking in Forêt De L'Isle-Adam?

Generally, dogs are welcome in Forêt De L'Isle-Adam, but it's always best to keep them on a leash, especially in areas with wildlife or other visitors. Ensure your dog is well-behaved and that you clean up after them to preserve the natural environment for everyone.

What are some notable landmarks or natural features to look out for along the trails?

Forêt De L'Isle-Adam is rich in natural and historical sights. You can discover hidden ponds like the serene Étang de la Justice, or historical points such as the Étoile de Conti, an ancient hunters' meeting point. The forest also features unique geological sights like the Table de Cassan, a large hunting table carved from a limestone monolith. Keep an eye out for Remarkable trees and enjoy the lush greenery.

Are there any challenging mountain bike trails for experienced riders?

Absolutely. Forêt De L'Isle-Adam offers routes with significant elevation changes and technical sections. A challenging option is the Viewpoint over the forest – High-speed descent loop from Montsoult - Maffliers, a 27.2 km trail with varied terrain and descents. Another demanding route is the Marie Pond – Tour du Plumet loop from Montsoult - Maffliers, which features nearly 500 meters of elevation gain over 30.5 km.

What do other mountain bikers say about the trails in Forêt De L'Isle-Adam?

The mountain bike trails in Forêt De L'Isle-Adam are highly rated by the komoot community, with an average score of 4.3 stars from over 660 reviews. More than 3,000 mountain bikers have used komoot to explore the varied terrain, often praising the diverse woodland, well-marked paths, and the serene escape from city life.

When is the best time of year to go mountain biking in Forêt De L'Isle-Adam?

The forest offers beauty year-round. In late April and early May, the forest floor is adorned with wildflowers, wild hyacinths, and lily of the valley, making it a particularly picturesque time. However, the diverse woodland and well-maintained trails are enjoyable throughout the spring, summer, and autumn months. Be mindful of potential muddy conditions after heavy rain.

Are there any circular mountain bike routes available?

Yes, many of the mountain bike routes in Forêt De L'Isle-Adam are designed as loops, allowing you to start and finish at the same point. Examples include the Remarkable trees – Forest Climb loop from Nerville-la-Forêt and the Chemin de la Petite Plaine – Montée de la Pierre Turquaise loop from Montsoult - Maffliers, both offering comprehensive tours of different sections of the forest.

How accessible is Forêt De L'Isle-Adam from Paris, and what are the parking options?

Forêt De L'Isle-Adam is conveniently accessible from Paris, with direct train lines making it suitable for a day trip. While specific parking details for trailheads are not provided, the forest's popularity suggests various access points and parking areas are available around its perimeter, particularly near towns like Nerville-la-Forêt and Montsoult - Maffliers, which serve as common starting points for routes.

Are there any specific regulations or permits required for mountain biking in the forest?

The provided information does not indicate any specific permits required for mountain biking in Forêt De L'Isle-Adam. However, it's always advisable to respect local signage, stay on marked trails, and be mindful of other forest users such as hikers and horseback riders to ensure a pleasant experience for everyone.

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