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France

Ile-de-France

Sarcelles

Saint-Martin-Du-Tertre

Lac Bleu – Le Petit Étang de Carnelle loop from Saint-Martin-du-Tertre

Routes

Hiking trails & Routes

France

Ile-de-France

Sarcelles

Saint-Martin-Du-Tertre

Lac Bleu – Le Petit Étang de Carnelle loop from Saint-Martin-du-Tertre

Moderate

4.3

(4)

hikers

Lac Bleu – Le Petit Étang de Carnelle loop from Saint-Martin-du-Tertre

02:28

8.99km

150m

Hiking

Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels. The starting point of the route is accessible with public transport.

Last updated: May 13, 2026

Tips

Your route passes through a protected area

Please check local regulations for:

Parc naturel régional Oise-Pays de France

Waypoints

Start point

Bus stop

Get Directions

2.88 km

Lac Bleu

Highlight • Lake

3.14 km

Le Petit Étang de Carnelle

Highlight • Lake

The Petit Étang de Carnelle is located in the heart of the forest of old marl quarries. With an area of 1.3 hectares and a depth of 20 meters, this …

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3.58 km

The Blue Lake of Carnelle

Highlight • Forest

Lac Bleu is one of the two bodies of water in the Carnelle forest. On sunny days, its name takes on its full meaning. But there is another reason for …

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3.84 km

The Blue Lake

Highlight • Other

Park here + refill your bottle at a natural spring.
Lots of paths around

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4.07 km

Pond Before Lac Bleu

Highlight • Lake

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

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5.82 km

Covered alley

Highlight • Historical Site

This funerary megalith dates back to the beginning of the Neolithic period! It is the largest and most famous of all the covered alleys in the Paris region, which has …

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8.58 km

Tour du Guet Chappe

Highlight • Monument

This visit on Sunday morning, Chappe museum

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8.65 km

Saint-Martin-du-Tertre watchtower

Highlight • Monument

At 218 m altitude, the highest point of Val-d'Oise, you can discover an exceptional landscape on the plain of France, the hills of Châtenay-en-France, Écouen, Maffliers and Paris with the …

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8.99 km

End point

Bus stop

Way Types & Surfaces

Way Types

7.57 km

814 m

309 m

296 m

Surfaces

3.91 km

3.12 km

1.69 km

151 m

109 m

< 100 m

Elevation

Nothing selected – click and drag below to see the stats for a specific part of the route.

Highest point (200 m)

Lowest point (120 m)

Weather

Monday 25 May

31°C

16°C

0 %

Additional weather tips

Max wind speed: 11.0 km/h

to get more detailed weather forecasts along your route

Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.

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Lac Bleu – Le Petit Étang de Carnelle loop from Saint-Martin-du-Tertre

Lac Bleu

Le Petit Étang de Carnelle

The Blue Lake of Carnelle

The Blue Lake

Pond Before Lac Bleu

Covered alley

Tour du Guet Chappe

Saint-Martin-du-Tertre watchtower

Nearby routes

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