3.5
(2)
15
riders
2
rides
Gravel biking around Castaignos-Souslens offers access to the diverse landscapes of the Landes department in Nouvelle-Aquitaine, France. The region is characterized by the vast Landes de Gascogne pine forest, featuring a mix of wetlands, moors, and extensive forest roads. Terrain includes gentle undulations, with elevations ranging from 148 feet (45 meters) to 479 feet (146 meters), providing varied experiences for gravel cyclists. The proximity to the Adour River also offers opportunities for gravel bike routes along its towpaths, showcasing cultivated…
Last updated: July 2, 2026
3.5
(2)
6
riders
50.4km
03:05
600m
600m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
4
riders
78.1km
05:12
820m
810m
Hard gravel ride. Very good fitness required. You may need to push your bike for some segments of this route.

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4
riders
62.8km
04:08
610m
610m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
1
riders
52.1km
03:27
610m
610m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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Rest area along the greenway with water and picnic tables. From here you can also take a loop to visit the Chalosse lookout.
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Mugron is a small hilltop town with a lovely view. Park near the church and visit the Tree of Liberty, planted in the 19th century. It's majestic, and right next to it is a lovely viewpoint. Take a moment to admire the landscape beneath its canopy of trees. Mugrón is easily explored on foot. You'll find plenty to pack for a picnic, and then head to the leisure center: a lake where you can swim and enjoy water slides with the kids. There's a refreshment bar in season and everything you need for a pleasant time with family or friends, at a very reasonable price! The banks of the Adour also offer lovely walks. Source: https://www.guide-des-landes.com/fr/experiences/culturelle/article-visiter-mugron-et-rouge-garance-187.html
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Built on the old railway line that connected Saint-Sever to the spa town of Dax, the Chalosse Green Route offers a 34-kilometer stretch on smooth, hard-surfaced ground. The route offers a bucolic atmosphere with landscapes of woods, hills, and meadows. Among the main tourist attractions are the town center of Saint-Sever (whose abbey is a UNESCO World Heritage Site as part of the Santiago de Compostela Route), the villages of Mugron and Montfort with its Chalosse Museum, and Montaut, a charming Chalosse village. The Landes-Chalosse destination will delight cyclists thanks to its green route and numerous hiking trails. Source: https://www.landes-chalosse.com/se-divertir/fan-de-nature-loisirs-et-activites-de-plein-air/la-voie-verte-de-chalosse
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Little drink break by the river 😎
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After a nice little climb
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Here the famous Lady of Brassempouy was discovered in 1894, today attested as the first human face.
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Gaujacq Castle is an unusual masterpiece built in the image of an Italian building, with its botanical garden with 3,500 plant species.
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There are several gravel bike trails around Castaignos-Souslens, with komoot currently listing 5 routes. These routes are generally considered difficult, offering a challenging experience for gravel cyclists.
The terrain around Castaignos-Souslens is diverse, characterized by the vast Landes de Gascogne pine forest, wetlands, moors, and forest roads. You'll encounter gently undulating landscapes, with elevations ranging from 45 to 146 meters, providing a varied experience from sandy tracks to more compact forest roads. Riverine landscapes also suggest potential scenic riverside trails.
Yes, the routes around Castaignos-Souslens are generally considered challenging. For instance, the Voie verte de Chalosse – The Chalosse Viewpoint loop from Bergouey is a difficult 50.4 km trail with an elevation gain of 598 meters. Another option is the Saint-Sever Abbey – Saint-Sever Church loop from Hagetmau, which covers 66.4 km with 689 meters of elevation gain.
While cycling, you might encounter historical and natural points of interest. For example, the Brassempouy Prehistoric Site is a significant cultural landmark. You could also pass through charming villages like Gaujacq. Some routes may also offer views of the Voie de Saint-Jacques, a historic pilgrimage route.
The gravel routes in Castaignos-Souslens are highly rated by the komoot community, with an average score of 4.0 stars. Reviewers often appreciate the varied terrain, which includes pine forests and agricultural paths, offering a true gravel biking experience in a tranquil, rural setting.
Absolutely. For a longer ride, consider the Gaujacq – Château d'Amou loop from Hagetmau, which is 78.3 km long and typically takes over 5 hours to complete. This route leads through the local countryside, offering extensive exploration.
The Landes department, where Castaignos-Souslens is located, offers good cycling conditions for much of the year. Spring and autumn generally provide pleasant temperatures and less extreme weather, making them ideal for exploring the diverse landscapes. Summer can be warm, while winter might bring cooler, potentially wetter conditions, especially in riverine areas.
Yes, all the featured gravel routes around Castaignos-Souslens are designed as loops, allowing you to start and finish at the same point. Examples include the Hagetmau Town Hall – A goshawk loop from Hagetmau and the Brassempouy Prehistoric Site – Brassempouy Church loop from Bergouey.
The region offers various options for refreshments and accommodation. For dining, you might find local establishments like Le Jambon – Hotel Restaurant in Hagetmau. The tranquil, dispersed rural setting of Castaignos-Souslens and nearby towns means you can find charming places to stay, though specific cyclist-focused accommodation might require local inquiry.
Yes, Castaignos-Souslens serves as an excellent base. Its location within the diverse landscapes of the Landes department, and its proximity to the broader Nouvelle-Aquitaine region and even the Pyrenees, means you can easily access a wide array of gravel biking experiences. The area shares terrain with established mountain biking routes, indicating its suitability for off-road cycling.
The gravel routes around Castaignos-Souslens feature significant elevation gains, reflecting their 'difficult' grading. For instance, routes typically range from approximately 600 meters to over 800 meters of ascent. The Gaujacq – Château d'Amou loop from Hagetmau, for example, has an elevation gain of over 816 meters.


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