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France
Ile-de-France
Sarcelles

Saint-Martin-Du-Tertre

The best walks and hikes around Saint-Martin-Du-Tertre

4.4

(105)

779

hikers

33

hikes

Hiking around Saint-Martin-Du-Tertre offers access to varied terrain, primarily characterized by dense woodlands and tranquil lakes. The region features gentle hills and well-defined paths, making it suitable for various hiking abilities. The landscape is dominated by the Forêt de Carnelle and its associated water bodies, such as Lac Bleu and Étang de Carnelle. These natural features provide a setting for numerous outdoor activities, including family friendly hikes.

Best hiking trails around Saint-Martin-Du-Tertre

  • The most popular hiking route is Le Petit…

Last updated: May 12, 2026

3.7

(3)

23

hikers

#1.

Lac Bleu – Le Petit Étang de Carnelle loop from Forêt de Carnelle

5.75km

01:31

50m

50m

Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.

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Easy

Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

Moderate
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Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

Moderate

Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.

Easy

Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.

Easy
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Popular around Saint-Martin-Du-Tertre

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Tips from the Community

Georgy Pichery
March 20, 2026, Tour du Guet Chappe

A must-see: the Chappe telegraph

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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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Sylvie L
September 18, 2024, Tour du Guet Chappe

This visit on Sunday morning, Chappe museum

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pretty lake hidden in the middle of the forest

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Be careful, in the forest, the singles go off the paths and pass through the middle of the ONF plots. Traffic is prohibited there.

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Nice walk in the forest with the three chained lakes at the end

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Super path (Gravel / VTT) to reach the ponds avoiding the road.

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Frequently Asked Questions

How many hiking trails are there around Saint-Martin-Du-Tertre?

There are over 30 hiking trails available around Saint-Martin-Du-Tertre, offering a variety of options for different skill levels. The region is known for its extensive forests and serene lakes, providing a beautiful backdrop for your walks.

Are there easy hiking trails suitable for beginners or families?

Yes, Saint-Martin-Du-Tertre offers many easy trails perfect for beginners or families. For example, the Le Petit Étang de Carnelle – Carnelle's Blue Lake loop from Forêt de Carnelle is an easy 3.2-mile (5.2 km) route that circles the scenic Lac Bleu, taking about 1 hour 27 minutes to complete.

What kind of terrain can I expect on hikes in Saint-Martin-Du-Tertre?

The terrain around Saint-Martin-Du-Tertre is primarily characterized by dense woodlands, gentle hills, and tranquil lakes. You'll find well-defined paths, especially around the Forêt de Carnelle and its associated water bodies like Lac Bleu and Étang de Carnelle.

Are there any circular hiking routes in the area?

Yes, many of the trails around Saint-Martin-Du-Tertre are circular, allowing you to start and end at the same point. A popular option is The Blue Lake – Lac Bleu loop from Saint-Martin-du-Tertre, a moderate 5.0-mile (8.0 km) path exploring the woodlands and shores around Lac Bleu.

What are some notable natural attractions or landmarks to see while hiking?

While hiking, you can explore several natural attractions. The prominent The Blue Lake of Carnelle is a central feature, and you might also encounter historical sites like the Saint Radegonde Fountain or the Pierre de Lait Polishing Stone.

Is there public transport access to the hiking trails?

Saint-Martin-Du-Tertre is accessible by public transport, with local bus services connecting to nearby towns and train stations. It's advisable to check local bus schedules for the most convenient access points to the trailheads, especially those within the Forêt de Carnelle.

Where can I find parking for hiking trails in Saint-Martin-Du-Tertre?

Parking is generally available at key access points around the Forêt de Carnelle and near the village of Saint-Martin-Du-Tertre. Many trailheads, particularly those leading to Lac Bleu, offer designated parking areas for hikers.

What do other hikers enjoy most about hiking in Saint-Martin-Du-Tertre?

The hiking experience in Saint-Martin-Du-Tertre is highly rated by the komoot community, with an average score of 4.4 stars from over 100 reviews. Hikers often praise the quiet woodlands, the serene beauty of Lac Bleu, and the well-marked paths that make navigation easy.

Are there any more challenging routes for experienced hikers?

While the region is known for its gentle hills, there are moderate routes that offer a bit more challenge. The Le Petit Étang de Carnelle – The Blue Lake of Carnelle loop from Saint-Martin-du-Tertre is a 5.6-mile (9.0 km) trail through the Forêt de Carnelle, often completed in about 2 hours 28 minutes, providing a longer and more varied experience.

Can I hike around Lac Bleu?

Yes, Lac Bleu is a central feature for hiking in the area. There are multiple routes that either circle the lake or pass by its shores. For instance, the Carnelle's Blue Lake – Lac Bleu loop from Forêt de Carnelle is an easy 3.3-mile (5.3 km) route that offers beautiful views of the lake.

What is the best time of year to go hiking in Saint-Martin-Du-Tertre?

The region is enjoyable for hiking throughout much of the year. Spring and autumn offer pleasant temperatures and beautiful foliage, while summer provides lush green landscapes. Even in winter, the well-defined paths through the Forêt de Carnelle can be suitable for a refreshing walk, though conditions should be checked.

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