4.5
(4)
29
riders
3
rides
No traffic gravel bike trails around Port are characterized by varied terrain, including plateaus and lake regions. The area offers routes with moderate to significant elevation gains, providing diverse challenges for gravel bikers. The landscape features a mix of natural environments, from open plateaus to scenic lake views, ensuring a range of experiences.
Last updated: July 3, 2026
4.5
(2)
4
riders
23.4km
01:53
300m
300m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
4.5
(2)
13
riders
39.8km
02:48
760m
760m
Hard gravel ride. Very good fitness required. You may need to push your bike for some segments of this route.

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3
riders
34.0km
02:31
660m
660m
Hard gravel ride. Very good fitness required. You may need to push your bike for some segments of this route.
2
riders
40.7km
02:52
770m
770m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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Popular around Port
The ruin is very beautiful, panels indicate the history of the site, very instructive! Calm and relaxing, the site offers a magnificent setting and allows for nice picnic breaks!
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Magnificent brown ponds, calm and relaxing, a must-see stop!
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The Lac de Nantua is a superb body of water of 141 hectares. In the heart of the Jura, it offers an ideal setting for practicing a multitude of sports. It is even possible to swim in its waters.
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The Peney viewpoint overlooks Lake Sylans, on which it offers a beautiful view. Classified since 1909, one can distinguish on its banks the ruins of the old ice factories which commercialized the ice extracted from the lake until 1917. The passage is located at the level of the tunnel of the same name.
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The Marron ponds are named after a family from Brénod, it is not a reference to the color of the water. Only one of them remains filled with water all year round. This one served as a water reserve and fishing spot for the monks of the Meyriat abbey. In spring, a multitude of water lilies cover the surface.
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Beautiful, simple, easy walk; lots of traffic noise on the "road" section, a bit of a shame, but the color of the water is magical
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Unfortunately I was unlucky with the weather, but even as I drove past the place looked very nice, lots of grass and a place to swim.
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There are a few dedicated no-traffic gravel bike trails around Port, offering a great escape from cars. Currently, this guide features 3 such routes, ranging from moderate to difficult in intensity.
The no-traffic gravel bike trails around Port feature varied terrain, often including significant elevation changes. For example, the Lake Nantua – Lac de Nantua loop from Brion - Montréal-la-Cluse involves nearly 700 meters of ascent, while the Brenod plateau route has about 300 meters of climbing. You can expect a mix of gravel paths, forest roads, and potentially some paved sections in between.
Yes, several of the no-traffic gravel bike routes around Port are circular, allowing you to start and end at the same point. Both the Lake Nantua – Lac de Nantua loop from Brion - Montréal-la-Cluse and the Lake Nantua – View of Lake Nantua loop from Nantua are excellent circular options that offer scenic loops.
Many routes offer stunning views, particularly around Lake Nantua. The Lake Nantua – View of Lake Nantua loop from Nantua specifically highlights vistas of the lake. Additionally, you might encounter features like the Jarbonnet Rocks, which offer panoramic views, and various mountain passes such as Col de Bérentin and Cuvéry Pass.
While the routes listed in this guide are generally rated as moderate to difficult, the Brenod plateau route is the least challenging, rated as moderate. It's shorter with less elevation gain compared to the Lake Nantua loops, making it a potentially better option for those seeking a slightly less strenuous ride. Always check the route details for specific difficulty and elevation to ensure it matches your group's ability.
Beyond the trails themselves, you can explore natural attractions like Lake Nantua, which is a central feature for several routes. There are also numerous mountain passes in the vicinity, such as Belleroche Pass and Col de Matafelon, which offer additional exploration opportunities and stunning views.
The komoot community highly rates the experiences around Port, with an average score of 4.75 stars. Reviewers often praise the quiet, car-free nature of these routes, allowing for an immersive experience in the natural landscape, particularly around scenic spots like Lake Nantua and the various mountain passes.
Given the prominence of Lake Nantua in the region, it's a natural spot to consider for wild swimming. While specific swimming spots aren't detailed for every trail, the lake itself is a popular destination for water activities. Always check local regulations and safety guidelines before swimming in natural bodies of water.
Specific public transport access points for each trailhead are not detailed in the route descriptions. It's recommended to check local public transport schedules and routes to the starting points of tours like the Lake Nantua – Lac de Nantua loop from Brion - Montréal-la-Cluse from Brion - Montréal-la-Cluse or the Lake Nantua – View of Lake Nantua loop from Nantua from Nantua directly, as these towns may offer better connectivity.
While specific parking information isn't provided for every trailhead, routes often start from towns or villages like Nantua or Brion - Montréal-la-Cluse, where public parking facilities are typically available. It's advisable to research parking options in these starting locations before your trip to ensure convenience.
The best time for gravel biking in this region generally depends on weather conditions. Spring and autumn often offer pleasant temperatures and beautiful scenery. Summer can be warm, especially on routes with less tree cover, while winter might bring snow or icy conditions, particularly at higher elevations like the mountain passes. Always check the local weather forecast before heading out.


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