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France
Provence-Alpes-Côte D'Azur
Provence
Provence-Alpes-Côte d'Azur
Istres
Fos-Sur-Mer

Lavalduc Lagoon – Small sumpa tunnel loop from Chemin du Mazet

Moderate

6

hikers

Lavalduc Lagoon – Small sumpa tunnel loop from Chemin du Mazet

03:40

14.1km

100m

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: June 18, 2026

Waypoints

A

Start point

Bus stop

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1

3.78 km

Lavalduc Lagoon

Highlight • Other

Scenic rarely visited lagoon with salt deposits in used since ancient pre-roman times

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2

3.87 km

Fos Lookout

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Like all lookouts, it offers an exceptional view of the two ponds of Lavalduc and l'Engrenier! You have to go there!

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3

4.48 km

Views of Étang d'Engrenier

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Like these neighbours, this small pond is pink which gives striking and original views!
In addition, you can pass on the dike between the two ponds: To see!

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4

4.74 km

Small sumpa tunnel

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An essential passage under the railway

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5

10.1 km

Nice bike path around the Etang, but don't forget mosquito repellent.

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6

10.3 km

A bridge runs right through the Etang de lÈstomac. The church of Fos sur Mer is perched on a hill in the middle of the marshes

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B

14.1 km

End point

Bus stop

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Way Types & Surfaces

Way Types

9.75 km

3.08 km

1.28 km

Surfaces

9.69 km

1.88 km

967 m

895 m

315 m

234 m

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Elevation

Elevation

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

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Weather

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Friday 26 June

34°C

21°C

0 %

Additional weather tips

Max wind speed: 14.0 km/h

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

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