4.3
(4)
18
riders
1
ride
Gravel biking around Mars offers a unique experience across a landscape characterized by vast plains, volcanic terrains, and immense canyon systems. The region features extensive low-lying northern plains and the Tharsis Rise, an elevated volcanic plateau with large shield volcanoes. Riders can explore diverse topography, from relatively flat basin crossings to challenging climbs along crater walls. The surface material, rich in iron oxides, contributes to a distinctive red hue throughout the routes.
Last updated: May 7, 2026
3.5
(2)
13
riders
130km
08:52
1,690m
1,690m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5.0
(2)
4
riders
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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1
riders
39.9km
02:34
380m
380m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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Popular around Mars
In this abbey, the eco-hamlet of Bénisson-Dieu meets to sing vespers at least once a week. A little extra: they sing in a unique medieval Gregorian chant! Not to be missed!
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Beautiful Abbey and lovely grounds to stroll around while your legs recover from you strenuous ride 🤓
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Marcigny is renowned for its traditional Monday market, which has existed since the 11th century. This commune is also home to the Saint-Rigaud Abbey, an important historical site dating from the Middle Ages. The city is also famous for its ceramic manufacturing, notably the famous stoneware potteries which are very popular with craft enthusiasts.
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Wonderful stage stop on my Camino https://huettemann.eu/de/2023/10/von-cluny-an-die-loire-berndscamino/
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The site is clean and very well maintained. Easy parking on site and several reasons to go there: the greenway, the Museoparc du Marinier with its mini golf, its water games and its barge-museum and the restaurants with terrace overlooking the port.
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The port of Briennon has been converted into a pretty marina. It is located on the Roanne to Digoin canal just a few hundred meters from the Loire.
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The gravel bike trails around Mars offer a diverse experience, ranging from moderate to difficult. You'll encounter varied elevations, with some routes featuring significant climbs and descents. For instance, the View of Briennon Marina – View of Lac de Villerest loop from Charlieu includes over 1600 meters of elevation gain, providing a challenging ride through the local landscape.
While the listed routes tend towards moderate to difficult, the 'no traffic' aspect makes them safer for families with older, more experienced riders. For a slightly less demanding option, consider the View of Briennon Marina – Briennon marina loop from Pouilly-sous-Charlieu, which is rated moderate and covers a distance of just under 40 km.
The no-traffic gravel bike tours around Mars vary in length and duration. You can find routes like the View of Briennon Marina – Briennon marina loop from Pouilly-sous-Charlieu, which is about 40 km and takes around 2.5 hours, or longer, more challenging rides such as the View of Briennon Marina – View of Lac de Villerest loop from Charlieu, spanning over 130 km and requiring more than 8 hours to complete.
Yes, all the no-traffic gravel bike routes featured in this guide are designed as loops, allowing you to start and end your ride in the same location. This includes popular options like the Charlieu, medieval town – View of Briennon Marina loop from Pouilly-sous-Charlieu.
The routes offer opportunities to explore local points of interest. You might pass by historical sites such as Charlieu, medieval town, or the serene Charlieu Benedictine Abbey. Other highlights include the Col du Pavillon, offering scenic views, and various religious buildings like the Chapel of Fatima.
Given the varied terrain and potential for significant elevation changes, spring and autumn generally offer the most pleasant conditions for gravel biking around Mars. The temperatures are milder, and the natural scenery is often at its most vibrant. Summer can be enjoyable, but be prepared for warmer weather, especially on longer routes.
The area is highly rated by the komoot community, with an average score of 5.0 stars. Reviewers often praise the tranquility of the no-traffic routes, the beautiful natural landscapes, and the rewarding challenges presented by the varied elevations. The opportunity to explore charming towns and historical sites along the way is also frequently highlighted.
While the routes in this guide are generally rated moderate to difficult, the 'no traffic' aspect makes them more accessible for beginners who are comfortable with some physical exertion. The View of Briennon Marina – Briennon marina loop from Pouilly-sous-Charlieu is the least challenging option, rated moderate, and could be a good starting point for those looking to build their gravel biking experience.
The routes often pass through or near towns like Charlieu and Pouilly-sous-Charlieu, where you can typically find local amenities, including cafes, restaurants, and accommodation options. These towns provide convenient spots to refuel and rest during or after your ride.
Given the varied terrain, which includes gravel paths and potentially some rougher sections and significant elevation changes, a gravel bike is ideal. Its robust frame, wider tires, and comfortable geometry will provide the best experience. A mountain bike would also be suitable, especially for the more difficult routes.
While these are 'no traffic' routes, it's always important to be prepared. Some trails feature significant elevation changes, so ensure your bike is in good working order and you have appropriate gear. Always carry enough water, snacks, and a repair kit. Check weather conditions before you go, as they can impact trail conditions.


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