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France
Pays de la Loire
Saint-Nazaire

Crossac

The best walks and hikes around Crossac

4.2

(176)

986

hikers

11

hikes

Hiking around Crossac offers access to the Brière Regional Nature Park, France's second-largest marshland. The region is characterized by a network of canals, expansive reed beds, peat bogs, and flood-meadows, providing a largely flat terrain for exploration. This environment supports diverse wildlife, including numerous migratory birds, making it suitable for nature observation.

Best hiking trails around Crossac

  • The most popular hiking route is Crossac loop from Crossac, a 5.6 miles (9.1 km) trail that takes 2 hours 19 minutes…

Last updated: June 25, 2026

4.0

(1)

10

hikers

#1.

Crossac loop from Crossac

9.07km

02:19

30m

30m

Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

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Moderate

Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

Moderate
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Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

Moderate

Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

Moderate

Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.

Easy
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Popular around Crossac

The Loire from ocean to source — GR3 La Baule-Escoublac to Nantes

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Road Cycling Routes around Crossac

Cycling around Crossac

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Other adventures around Crossac

The Loire from ocean to source — GR3 La Baule-Escoublac to Nantes

Hiking Collection by

SimonWicart

Tips from the Community

Sebo
October 30, 2025, Circuit des moulins

Suitable for all weather conditions

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Fred
September 13, 2024, Dolmen de la Barbière

I really didn't understand how to get to the dolmen. The path that was supposed to go there was blocked off. I was able to take a photo over the hedge of the field next door, but it was still very disappointing.

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Completely flooded in winter, but very good spot for observing coypu.

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The Pont de la Guesne is one of the many bridges that span the rivers and canals that branch out from the magnificent Marais de Brière. On it, you find the red and white marking of the GR 3.

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SimonWicart
June 3, 2023, Crossac

Crossac is a small village known for its surrounding menhirs, such as the Barbière dolmen or the Bois Hoël menhir. The town itself has small shops of basic necessities (bakery, delicatessen, pharmacy). Gateway to the Brière, the village is also crossed by the famous GR 3.

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Beautiful dolmen, easily accessible from the small path through the hedges.

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on a private plot accessible

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Julgue
October 31, 2021, Pont de la Guesne

GR3 crossing point

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Frequently Asked Questions

How many hiking trails are available around Crossac?

There are over 10 hiking trails around Crossac, offering various options to explore the Brière Regional Nature Park. These routes range from easy walks to more moderate challenges.

What is the typical terrain and elevation like for hiking in Crossac?

Hiking in Crossac primarily involves flat terrain, characteristic of the Brière Regional Nature Park, which is France's second-largest marshland. You'll traverse a network of canals, expansive reed beds, peat bogs, and flood-meadows, with very low elevation gain.

Are there any circular hiking routes in Crossac?

Yes, many of the trails around Crossac are circular. For example, the Saint-Joachim Church – La Barbière Dolmen loop from Crossac is a moderate 11.8 km circular route that allows you to explore both natural landscapes and historical sites.

What historical landmarks or natural features can I see while hiking near Crossac?

The area around Crossac is rich in both natural and historical features. You can encounter ancient megalithic structures like the La Barbière Dolmen, or explore the mysterious Ruins of the Château de Lorieux. The Rozé Port and Viewpoint offers excellent views of the marshland.

Are there any easy hiking trails suitable for beginners in Crossac?

Yes, Crossac offers several easy trails. The La Barbière Dolmen – Crossac loop from Crossac is an easy 6.8 km route, perfect for those looking for a less strenuous walk while still experiencing the local scenery and historical elements.

What is the best time of year to hike in the Brière Regional Nature Park near Crossac?

The Brière Regional Nature Park offers a unique experience throughout the seasons. Spring and autumn are particularly pleasant for hiking, with milder temperatures and vibrant natural colors. Spring brings blooming white water lilies and yellow irises, while autumn showcases the changing marshland hues. Birdwatching is excellent during migratory seasons.

Are the hiking trails around Crossac family-friendly?

Yes, many of the trails in Crossac are family-friendly due to their generally flat terrain and moderate distances. The diverse wildlife, especially migratory birds, and historical sites like dolmens can make for an engaging experience for children. Consider routes like the La Barbière Dolmen – Crossac loop from Crossac for an accessible family outing.

Can I bring my dog on the hiking trails in Crossac?

The Brière Regional Nature Park is a protected area, and while dogs are generally permitted on trails, it's crucial to keep them on a leash to protect the diverse wildlife, especially ground-nesting birds and other marshland creatures. Always check local signage for specific rules or restrictions on individual routes.

Where can I find parking for hiking trails in Crossac?

Many hiking routes in Crossac, such as the "Sur les Pas de Cadou" and "Boucle de Croazac" trails, start from the Calvaire car park in the village. It's advisable to check the starting point of your chosen route for specific parking information, but generally, parking is available near trailheads in the village.

What do other hikers enjoy most about hiking in Crossac?

The hiking experience around Crossac is highly rated by the komoot community, with an average score of 4.2 stars. Reviewers often praise the tranquil marshland landscapes, the opportunity for birdwatching, and the well-maintained paths that offer a unique immersion into the Brière Regional Nature Park.

Are there any viewpoints along the hiking trails in Crossac?

Yes, the Rozé Port and Viewpoint is a notable location that offers excellent panoramic views of the evolving marshland throughout different seasons. It's a great spot to observe the vastness and biodiversity of the Brière.

How long do hikes in Crossac typically take?

Hikes in Crossac vary in duration depending on the route and your pace. For instance, the Crossac loop from Crossac, a 9.1 km trail, typically takes around 2 hours and 19 minutes. Longer routes like the La Guesne Bridge – Crossac loop from Crossac (17.0 km) can take approximately 4 hours and 21 minutes.

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