4.4
(728)
2,418
riders
198
rides
Mountain biking around Lac De Grand Lieu offers a network of routes primarily characterized by flat to gently rolling terrain, often skirting the edges of the expansive lake. The landscape features a mix of open areas with lake views, sections through woodlands, and agricultural lands. Elevation changes are minimal, with most routes staying below 200m, making it suitable for longer, less strenuous rides. The region provides opportunities for exploring diverse natural habitats and quiet paths away from urban areas.
Last updated: July 6, 2026
4.0
(28)
91
riders
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
4.6
(5)
12
riders
25.4km
01:44
140m
140m
Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.

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4.9
(8)
19
riders
34.0km
02:18
140m
140m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
4.0
(2)
17
riders
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
4.6
(5)
11
riders
Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.
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Not accessible depending on the tides
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Beautiful panorama from this spot, we can see the expanse of the lake as well as Nantes in the background
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The largest natural plain lake and the second largest ornithological reserve in France, Lake Grand-Lieu offers magnificent lakeside landscapes. Here, you have to get off your bike to get as close as possible to its waters.
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Magnificent view of the lake 👌
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It's quiet and it rolls well Perfect for a quiet ride
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The view of Nantes is great, but the vegetation is a bit dense, my arms will remember it.
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We have the choice of road, path, walk. Very beautiful place
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There are nearly 200 mountain bike trails around Lac De Grand Lieu, offering a wide range of options for different skill levels. You'll find approximately 84 easy routes, 100 moderate routes, and 11 more challenging trails.
Yes, Lac De Grand Lieu offers many easy mountain bike trails perfect for beginners or families. These routes typically feature flat to gently rolling terrain. An excellent option is the Gravel Path in the Forest loop from Saint-Lumine-de-Coutais, which is 15.8 miles (25.4 km) long and leads through shaded forest sections on well-maintained gravel surfaces. Another easy choice is the Le Port Hamoneau – View of La Cheneau loop from Bouaye.
The terrain around Lac De Grand Lieu is primarily flat to gently rolling, often skirting the edges of the expansive lake. You'll encounter a mix of open areas with lake views, sections through woodlands, and agricultural lands. Elevation changes are minimal, making it suitable for longer, less strenuous rides.
Many trails offer excellent views of Lac De Grand Lieu. The South of Lac de Grand-Lieu – Saint-Rachoux footbridge loop from Port-Saint-Père - Saint-Mars provides extensive lake views and includes passage over a footbridge. Another route, the View of La Cheneau – Le Port Hamoneau loop from Port-Saint-Père - Saint-Mars, also leads through varied landscapes with notable viewpoints.
The best time for mountain biking around Lac De Grand Lieu is typically during spring and autumn when temperatures are mild and the natural scenery is vibrant. Summer can also be pleasant, especially in shaded forest sections, but be prepared for warmer weather. Winter rides are possible, but some paths might be muddy after rain.
Yes, many mountain bike routes around Lac De Grand Lieu are designed as loops, allowing you to start and finish at the same point. Examples include the Gravel Path in the Forest loop from Saint-Lumine-de-Coutais and the Nice trail – Filée Park Pond loop from La Chevrolière.
The mountain bike trails around Lac De Grand Lieu are highly rated by the komoot community, with an average score of 4.4 stars from over 700 reviews. Riders often praise the quiet paths, diverse natural habitats, and the opportunities for exploring the expansive lake views and woodlands.
Yes, you can discover several interesting landmarks and natural attractions while mountain biking. Keep an eye out for the Lake Grand-Lieu, Pierre Aiguë site, or explore the Lake path between Bouaye and Saint Aignan de Grand Lieu. You might also pass by Le Port des Roches or enjoy the views from a Window over Lake Grand-Lieu.
Given the varied terrain and potential for longer rides, we recommend wearing comfortable, moisture-wicking cycling apparel. Layers are advisable, especially during spring and autumn, to adapt to changing temperatures. Always wear a helmet, and consider padded shorts for comfort on longer excursions. Bring plenty of water and snacks.
While specific cafes directly on the trails are limited, you'll find various dining options in the villages surrounding Lac De Grand Lieu, such as Saint-Lumine-de-Coutais, Port-Saint-Père, and Bouaye. These towns offer opportunities to refuel before or after your ride.
Parking is generally available in the towns and villages that serve as starting points for the trails, such as Saint-Lumine-de-Coutais, Port-Saint-Père, Bouaye, and La Chevrolière. Look for designated public parking areas, often near town centers or trailheads.


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