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Hiking trails & Routes
France
New Aquitaine
La Rochelle
Dompierre-Sur-Mer

Saint Léonard tunnel – Canal de Marans à La Rochelle loop from Les Tausières

Routes
Hiking trails & Routes
France
New Aquitaine
La Rochelle
Dompierre-Sur-Mer

Saint Léonard tunnel – Canal de Marans à La Rochelle loop from Les Tausières

Moderate

4.5

(6)

59

hikers

Saint Léonard tunnel – Canal de Marans à La Rochelle loop from Les Tausières

02:10

8.50km

30m

Hiking

Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels. The starting point of the route is right next to a parking lot.

Last updated: October 24, 2025

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Waypoints

A

Start point

Parking

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1

454 m

Saint Léonard tunnel

Highlight • Other

The Saint-Léonard tunnel was built around 1850 by Spanish prisoners of war and convicts. The special blue limestone extracted from the works was used to make lime mortar for Fort Boyard.

Translated by Google •

Tip by

2

2.00 km

B

8.50 km

End point

Parking

Way Types & Surfaces

Way Types

4.52 km

3.93 km

< 100 m

Surfaces

3.47 km

3.12 km

1.12 km

789 m

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Elevation

Elevation

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Weather

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Wednesday 3 December

12°C

6°C

54 %

If you start your activity now...

Max wind speed: 17.0 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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