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Routes
Hiking trails & Routes
France
Ile-de-France
Pontoise
Le Bellay-En-Vexin

The Great Outdoors Trail

Moderate

5.0

(1)

9

hikers

The Great Outdoors Trail

03:55

15.3km

60m

Hiking

Hike the moderate 9.5-mile Les Grands Espaces trail in Parc Naturel Régional du Vexin Français, exploring diverse landscapes and historical

Last updated: February 26, 2026

Tips

Your route passes through a protected area

Please check local regulations for:

Parc naturel régional du Vexin Français

Waypoints

A

Start point

Parking

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1

322 m

Saint Mary Magdalene Church

Highlight • Religious Site

Small church of French Vexin. Of Romanesque construction, it has been renovated and restored many times, in different styles (Gothic, Renaissance, etc.)

Translated by Google •

Tip by

2

6.33 km

Jules César Road, Explanation!

Highlight • Historical Site

End of the crossing in the vexin for the Chaussée Jules César, Demonstration and explanation of its construction.

Translated by Google •

Tip by

B

15.3 km

End point

Parking

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Way Types & Surfaces

Way Types

8.28 km

4.52 km

1.80 km

702 m

Surfaces

4.50 km

3.18 km

2.55 km

2.53 km

2.29 km

254 m

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Elevation

Elevation

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Weather

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Wednesday 27 May

32°C

15°C

19 %

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Max wind speed: 10.0 km/h

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This route was planned by komoot.

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Frequently Asked Questions

How long does it typically take to complete this hike?

This moderate hike, spanning approximately 15.3 kilometers, usually takes around 3 hours and 55 minutes to complete. This duration can vary depending on your pace and how often you stop to enjoy the scenery.

What is the terrain like on the Les Grands Espaces route?

The terrain is quite varied, characteristic of the Vexin Français region. You'll encounter sections through verdant river valleys, extensive woodlands with oak, ash, and chestnut trees, and agricultural plateaus. The path includes rolling hills and some parts may be uneven, reflecting its 'moderate' difficulty rating.

Is this trail suitable for beginners or families with children?

Rated as 'moderate', this trail requires a good level of fitness. While the Vexin Français offers many easy trails, this particular route might be challenging for absolute beginners or very young children. It's best suited for hikers with some experience.

What historical or cultural sites can I see along the way?

The route passes by several points of interest that highlight the region's rich heritage. You can see the historic Saint Mary Magdalene Church and learn about the ancient Jules César Road. The wider park area is also dotted with mills, fountains, and charming villages.

What is the best time of year to hike this trail?

The Vexin Français offers different appeals throughout the year. Spring and summer bring fields of wheat and sunflowers, while autumn showcases vibrant foliage. Winter can offer serene snowy landscapes. For comfortable hiking conditions, spring and early autumn are often ideal, avoiding extreme heat or cold.

Is the Les Grands Espaces trail dog-friendly?

Yes, dogs are generally welcome on trails within the Parc Naturel Régional du Vexin Français. However, it's always recommended to keep your dog on a leash, especially when passing through agricultural areas or near wildlife habitats, to ensure their safety and respect for the environment.

Do I need a permit or pay an entrance fee for the Parc Naturel Régional du Vexin Français?

No, there are typically no entrance fees or permits required to access the trails within the Parc Naturel Régional du Vexin Français. It's a regional natural park, freely accessible to the public for recreational activities like hiking.

Where can I park to access the trailhead?

Specific parking details for the Les Grands Espaces trailhead are not provided in the available data. However, trails in the Vexin Français often have designated parking areas in or near the villages they pass through. It's advisable to check local maps or community resources for the most convenient starting point.

Does this trail connect with other paths in the Vexin Français?

Yes, this route utilizes a significant portion of the 'Les grands espaces' trail (98%) and also intersects with sections of other official paths. You'll find yourself on parts of 'Le camp de César', 'Lieux-dits et pigeonniers', and the 'Plateau de la chaussée de Jules César', among others, which are part of the extensive network of trails in the park.

Are there any facilities like cafes or restrooms near the trail?

The Parc Naturel Régional du Vexin Français is known for its charming villages. While specific facilities directly on the Les Grands Espaces trail are not detailed, you can often find cafes, restaurants, and public restrooms in the picturesque villages within the park, which the trail may pass near or through. It's a good idea to plan your stops accordingly.

What kind of wildlife or plants might I encounter?

The park boasts impressive biodiversity. You might spot various bird species, small mammals, and a wide array of plant life, especially in the wooded sections and river valleys. The changing seasons also bring different flora into bloom, making it appealing for nature enthusiasts.

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