4.5
(381)
1,865
hikers
36
hikes
Hiking around Saint-Philbert-De-Grand-Lieu offers diverse natural landscapes, including the expansive Lac de Grand-Lieu, one of France's largest freshwater lakes, and the meandering Boulogne river. The terrain features a mix of vineyard landscapes, traditional bocage (hedgerows and woodlands), and sunken paths. This region provides varied environments for outdoor exploration, from wetland edges to agricultural areas.
Last updated: July 9, 2026
4.3
(4)
32
hikers
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
5.0
(4)
24
hikers
15.7km
03:57
20m
20m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

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4.5
(4)
20
hikers
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
4.2
(19)
83
hikers
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
4.0
(2)
12
hikers
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
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perfect path for mountain biking while visiting the beautiful landscapes of the region.
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I went there to take a dip but the site was littered with rubbish (cake wrappers, chips, candy, tissues, McDonald's bags, pizza boxes, etc.) right down to the water. Exceptional because it was the day after the music festival or just a habit? Sunday was also packed with people (obviously)
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There is no chance to cross this water between October and May
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This castle is otherwise called the Château des Marais. It is now a private mansion of more than 1600 m², built by an architect under neo-classical inspiration. from the 1880s built on an estate of more than 12 hectares with its park, two fish ponds, swimming pool, its small forest, its meadow and its vineyards... More information and reservations here: https://www.chateau-desmarais.fr/
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Of this important 9th century abbey, all that remains today is the very beautiful abbey church, a priory and the gardens.
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It is possible to go around the lake by bike
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There are over 25 hiking routes available around Saint-Philbert-De-Grand-Lieu, offering a variety of experiences from easy strolls to more moderate excursions. The komoot community has explored these trails over 1,700 times.
Yes, Saint-Philbert-De-Grand-Lieu offers 13 easy hiking routes perfect for beginners or families. A great option is the Lake of Parc de la Boulogne loop from Saint-Philbert-de-Grand-Lieu, an easy 4.2 km trail that takes just over an hour to complete, exploring the local park.
Hikes in Saint-Philbert-De-Grand-Lieu vary in length. You can find shorter routes like the Lake of Parc de la Boulogne loop at 4.2 km, or longer, more moderate options such as the Hiking loop from Saint-Philbert-de-Grand-Lieu, which spans 15.7 km.
The region experiences a temperate oceanic climate with mild winters and pleasant summers, making it suitable for hiking year-round. Spring and autumn offer particularly comfortable temperatures and beautiful scenery, while summer is ideal for combining hikes with activities at Parc de la Boulogne.
Yes, many of the trails in Saint-Philbert-De-Grand-Lieu are circular, allowing you to start and end at the same point. Examples include the popular Lake of Parc de la Boulogne – St Phil bourg loop and the Wooden Footbridges Trail loop from Passay.
The most prominent natural attraction is the Lac de Grand-Lieu, one of France's largest freshwater lakes and a vital ecological zone. While direct access can be restricted, several viewpoints and the Maison du Lac de Grand-Lieu offer opportunities to appreciate its beauty. You can also explore the picturesque Boulogne river and the region's extensive vineyard landscapes. Consider visiting Lake Grand-Lieu, Pierre Aiguë site for a specific viewpoint.
Beyond the natural beauty, you can discover charming local features. The region is known for its vineyard landscapes, particularly for Muscadet Côtes de Grandlieu wines. You might also encounter traditional bocage landscapes and sunken paths. The Etang de Roche Ballue is another notable lake in the vicinity.
Generally, dogs are welcome on many hiking trails in the region, especially those that traverse vineyards and bocage landscapes. However, due to its protected status as an ornithological reserve, access for dogs might be restricted in certain sensitive areas around the Lac de Grand-Lieu. Always check local signage for specific rules.
Absolutely. The Lac de Grand-Lieu is France's second-largest ornithological reserve, hosting over 270 bird species. Hikers around the lake's periphery or at designated observatories have excellent opportunities for birdwatching. The diverse habitats also support a wide array of plant species.
The area is highly rated by the komoot community, with an average score of 4.4 stars from over 300 reviews. Hikers often praise the diverse natural landscapes, including the serene lake views, the charming vineyard paths, and the varied terrain that offers something for all ability levels.
While specific parking information for every trailhead isn't detailed, Saint-Philbert-De-Grand-Lieu is generally well-equipped for visitors. Parking is typically available near popular starting points, especially in and around the town center and at significant recreational areas like Parc de la Boulogne.
The terrain around Saint-Philbert-De-Grand-Lieu is quite varied. You'll encounter flat paths along the edges of marshlands and the Boulogne river, gentle inclines through vineyard landscapes, and traditional bocage areas with hedgerows and sunken paths. The routes are generally not very steep, with moderate elevation changes.


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