4.5
(2)
19
riders
4
rides
Gravel biking around Cize offers routes through the varied landscape of the Ain department in France. The region is characterized by its river valleys, forested hills, and proximity to the Jura mountains, providing diverse terrain for cycling. Riders can expect a mix of unpaved roads, forest tracks, and scenic paths that connect small villages and natural features. The area's topography includes moderate ascents and descents, making it suitable for both endurance challenges and picturesque rides.
Last updated: May 23, 2026
5.0
(1)
13
riders
44.9km
03:03
700m
700m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
4.0
(1)
2
riders
23.8km
01:38
300m
300m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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2
riders
29.1km
02:06
490m
490m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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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
1
0
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.
0
0
Memorial to the victims of deportation.
3
0
Natural jewel, sapphire blue or emerald green waters, nautical activities.
1
0
Having passed there many times, especially by bike, I did not know the history of the brown ponds. Thank you for these explanations !
1
0
The Marron ponds have been labeled “Sensitive Natural Spaces” since 2015. They take their name from a family from Brénod. They were created around 1120 and once served as a water and fishing reserve for the monks of Meyriat Abbey.
1
0
The northern part of the lake borders the village of Port.
2
1
There are over 10 gravel bike routes documented around Cize on komoot, offering a variety of experiences through the region's diverse landscape of river valleys and forested hills.
While many routes in Cize are rated as difficult, there is at least one moderate option available. The Lavoir de la Platte – Col de France loop from Meillonnas is a moderate 23.8 km trail that takes you through rolling countryside, suitable for those looking for a less strenuous ride.
For those seeking longer rides, the Cize Viaduct – Ain Valley loop from Matafelon-Granges spans 61.3 km, exploring the scenic Ain Valley. Another extensive option is the Lake Genin – Lake Nantua loop from Nurieux-Volognat, which is 61.2 km and offers beautiful lake views.
Gravel biking around Cize features a mix of unpaved roads, forest tracks, and scenic paths. The region's topography includes moderate ascents and descents, with routes passing through river valleys, forested hills, and tranquil lake regions, providing varied and engaging terrain.
Yes, several routes pass by interesting sights. You can see the impressive Cize-Bolozon Viaduct, explore the historic Chartreuse de Sélignac, or enjoy views from the Jarbonnet Rocks. Some natural highlights include the Grotte de Corveissiat and the Cascade de la Pisse Vache waterfall.
The gravel biking routes in Cize are highly rated by the komoot community, with an average score of 4.25 stars. Riders often praise the diverse terrain, from river valleys to forested hills, and the scenic beauty of routes like the Lake Nantua loop.
Many of the gravel bike routes around Cize are designed as loops, allowing you to start and finish at the same point. Examples include the popular Lake Nantua – Lac de Nantua loop and the Lavoir de la Platte – Col de France loop.
Yes, Cize offers several challenging routes. The majority of the trails are rated as difficult, featuring significant elevation changes and longer distances. For instance, the Lake Nantua – Lac de Nantua loop is a difficult 44.9 km ride with nearly 700 meters of elevation gain.
The varied landscape of Cize, with its forests and river valleys, makes it enjoyable across multiple seasons. Spring and autumn offer pleasant temperatures and beautiful foliage, while summer provides longer daylight hours. Always check local weather conditions before heading out.
Absolutely. The Lake Nantua – Lac de Nantua loop is highly scenic, circling the beautiful Lake Nantua with continuous water views. The Cize Viaduct – Ain Valley loop also offers picturesque riverine landscapes and views of the impressive viaduct.
Many gravel routes in Cize utilize unpaved roads and forest tracks, offering a quieter riding experience. The Quiet little road loop from Chartreuse du Val-Saint-Martin de Sélignac is specifically designed to take you through tranquil areas, away from heavy traffic.


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