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Fresnier Marsh Trail

Fresnier Marsh Trail

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Fresnier Marsh Trail

Hiking

4.3

(12)

Cycling

5.0

(1)

People Who've Recommended This Place

Régis

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Thierry Bossard

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samsam rsmo

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Gabrielle Leroux

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Fred

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Location: Savenay, Saint-Nazaire, Pays de la Loire, France

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Tips

August 30, 2026

Cycling

A pretty path connecting the town of Savenay to Grand Brossais, the northern gateway to the Syl marsh.

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Nearby routes

Best routes near Fresnier Marsh Trail

5.0

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hikers

Observatoire le Rocher – Mabille Valley Lake loop from Savenay

8.77km

02:19

80m

Moderate hike. Good fitness required. Easily walkable paths.

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How to understand each route’s difficulty level

Easy

Up to 2 hours and 1,000 ft. of elevation gain.Easily walkable paths.
Corresponds approx. to SAC 1.

Moderate

Up to 5 hours and 3,000 ft. of elevation gain. Requires good fitness.Mostly walkable paths. Sure-footedness required.
Corresponds approx. to SAC 2-3.

Hard

More than 5 hours long or 3000 ft. of elevation gain. Requires very good fitness.Sure-footedness, sturdy shoes and alpine experience required.
Corresponds approx. to SAC 4–6.

Technical difficulty rating based on the Swiss Alpine Club (SAC) Hiking Scale.

Moderate

3.5

(2)

hikers

Savenay lookout – Mabille Valley Lake loop from Savenay

14.9km

03:57

140m

Moderate hike. Good fitness required. Easily walkable paths.

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How to understand each route’s difficulty level

Easy

Up to 2 hours and 1,000 ft. of elevation gain.Easily walkable paths.
Corresponds approx. to SAC 1.

Moderate

Up to 5 hours and 3,000 ft. of elevation gain. Requires good fitness.Mostly walkable paths. Sure-footedness required.
Corresponds approx. to SAC 2-3.

Hard

More than 5 hours long or 3000 ft. of elevation gain. Requires very good fitness.Sure-footedness, sturdy shoes and alpine experience required.
Corresponds approx. to SAC 4–6.

Technical difficulty rating based on the Swiss Alpine Club (SAC) Hiking Scale.

Moderate

3.0

(1)

hikers

Mabille Valley Lake – Observatoire le Rocher loop from Savenay

12.1km

03:08

70m

Moderate hike. Good fitness required. Easily walkable paths.

Navigate with device Send to Phone

Save

How to understand each route’s difficulty level

Easy

Up to 2 hours and 1,000 ft. of elevation gain.Easily walkable paths.
Corresponds approx. to SAC 1.

Moderate

Up to 5 hours and 3,000 ft. of elevation gain. Requires good fitness.Mostly walkable paths. Sure-footedness required.
Corresponds approx. to SAC 2-3.

Hard

More than 5 hours long or 3000 ft. of elevation gain. Requires very good fitness.Sure-footedness, sturdy shoes and alpine experience required.
Corresponds approx. to SAC 4–6.

Technical difficulty rating based on the Swiss Alpine Club (SAC) Hiking Scale.

Moderate

Details

Informations

Elevation 10 m

Weather

Tuesday 3 November

11°C

6°C

0 %

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Expect light wind and shifting conditions.

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Location: Savenay, Saint-Nazaire, Pays de la Loire, France

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Fresnier Marsh Trail

#1.

Observatoire le Rocher – Mabille Valley Lake loop from Savenay

#2.

Savenay lookout – Mabille Valley Lake loop from Savenay

#3.

Mabille Valley Lake – Observatoire le Rocher loop from Savenay

Other Popular Places to Check Out

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