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Routes
Hiking trails & Routes
France
Pays de la Loire
Mayenne
Ambrières-Les-Vallées

Au Long du Lac Trail

Moderate

4.8

(8)

31

hikers

Au Long du Lac Trail

03:55

14.9km

120m

Hiking

Hike the moderate Au Long du Lac Trail, a 9.3-mile (14.9 km) loop with 389 feet (119 metres) of elevation gain, taking about 4 hours.

Last updated: February 26, 2026

Waypoints

A

Start point

Parking

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1

2.37 km

View of the River Mayenne

Highlight • Viewpoint

Very nice walk along the Mayenne and viewpoint along the green voice

Translated by Google •

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2

13.7 km

Viaduc de la Rosserie

Highlight • Bridge

The Rosserie viaduct made it possible to take the old railway line from La Chapelle-Anthenaise to Flers, but it now only serves the greenway and superb views of the Mayenne.

Translated by Google •

Tip by

B

14.9 km

End point

Parking

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Way Types & Surfaces

Way Types

6.24 km

4.87 km

2.46 km

1.20 km

170 m

Surfaces

6.44 km

5.58 km

1.73 km

726 m

464 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 22 May

29°C

14°C

0 %

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Max wind speed: 4.0 km/h

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This route was planned by komoot.

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Frequently Asked Questions

What is the overall difficulty of the Au Long du Lac Trail?

This trail is rated as moderate. While it covers a distance of nearly 15 km, the elevation gain is relatively gentle at around 118 meters, making it accessible for hikers with a reasonable fitness level.

Is the Au Long du Lac Trail a loop, or is it an out-and-back route?

The Au Long du Lac Trail is designed as a loop, starting and ending near Ambrières-les-Vallées. This allows you to experience diverse scenery without retracing your steps.

What are the main points of interest along the route?

As you hike, you'll encounter beautiful sights such as the View of the River Mayenne, offering picturesque vistas. You'll also cross the impressive Viaduc de la Rosserie, a notable bridge structure.

Does the trail intersect with other paths?

Yes, the route shares sections with several other official trails. You'll find yourself on parts of the La Vélo Francette, Domfront / Mayenne, and the Voie Verte de La Chapelle-Anthenaise à Ambrières-les-Vallées, among others.

Is the Au Long du Lac Trail dog-friendly?

Yes, dogs are generally permitted on the trail. However, it's always best to keep your dog on a leash to ensure their safety and the comfort of other hikers and local wildlife.

What is the best time of year to hike this trail?

The trail is enjoyable throughout the warmer months. Spring and autumn offer pleasant temperatures and beautiful scenery, with autumn providing particularly vibrant foliage. Summer is also great, but be prepared for potentially warmer weather.

Are there any specific permits or entrance fees required for the trail or the Parc Naturel Régional et Géoparc Normandie-Maine?

Generally, there are no specific permits or entrance fees required to access the Au Long du Lac Trail or the Parc Naturel Régional et Géoparc Normandie-Maine. However, always check local regulations before your visit, especially for any specific activities or facilities within the park.

Where can I park to access the trailhead?

The trail is a loop starting from Ambrières-les-Vallées. You can typically find parking available in or near the town, close to the start of the loop. Look for designated parking areas or public spaces that allow for day parking.

What kind of terrain can I expect on the Au Long du Lac Trail?

The trail offers varied terrain, including sections along the Lac de Haute Mayenne and through the surrounding natural landscape. Given its moderate difficulty and location, expect a mix of well-maintained paths, possibly some unpaved sections, and gentle inclines.

Is the Au Long du Lac Trail suitable for beginners?

While rated moderate due to its length of nearly 15 km, the relatively low elevation gain makes it manageable for beginners who are prepared for a longer walk. If you're new to hiking, ensure you have appropriate footwear and bring enough water and snacks.

What should I bring for a hike on this trail?

For a nearly 15 km hike, we recommend bringing plenty of water, snacks, appropriate hiking shoes, sun protection (hat, sunscreen), and layers of clothing suitable for the weather. A map or GPS device is also advisable, though the route is generally well-marked.

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