3.5
(2)
15
riders
2
rides
Gravel biking around Castaignos-Souslens offers routes through the gently undulating terrain of the Landes department in Nouvelle-Aquitaine, France. The region is characterized by an altitude ranging from 45 to 146 meters, providing varied cycling experiences without overly strenuous climbs. Riders can explore the Gascon countryside, which includes access to extensive maritime pine forests and paths along rivers and lakes. This rural setting provides quiet cycling routes suitable for gravel exploration.
Last updated: July 5, 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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Popular around Castaignos-Souslens
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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The region around Castaignos-Souslens offers a gently undulating terrain, with elevations ranging from 45 to 146 meters. This means you'll find engaging and varied cycling experiences without overly strenuous climbs, making it suitable for a range of gravel bikers. You can expect a mix of forest tracks, paths along rivers and lakes, and quiet secondary roads through the Gascon countryside.
Yes, several routes in the area are designed as loops, perfect for starting and ending in the same location. For example, you could explore the Voie verte de Chalosse – The Chalosse Viewpoint loop from Bergouey, which offers scenic views and covers about 50 km. Another option is the longer Gaujacq – Château d'Amou loop from Hagetmau, spanning approximately 78 km.
The trails often lead through the vast maritime pine forests characteristic of the Landes region, especially near the Landes de Gascogne Natural Park. You'll also find routes alongside winding rivers and lakes, such as those around the Base de Loisirs d'Orthez-Biron, which provide shaded paths and picturesque views. These natural settings offer a peaceful backdrop for your ride.
Absolutely. The region is rich in history. You can cycle sections of the historic Via Lemovicensis, one of the pilgrimage routes to Santiago de Compostela. Additionally, routes might take you near sites like the Brassempouy Prehistoric Site, known for its archaeological significance, or offer glimpses of historic villages and castles like the Castle de Morlanne. The Voie de Saint-Jacques (D376, Argelos) is a notable trail section you might encounter.
The region generally offers pleasant conditions for gravel biking from spring through autumn. Spring brings blooming landscapes, while autumn provides cooler temperatures and beautiful foliage. Summers can be warm, but the extensive pine forests and paths along water bodies offer welcome shade. Winter rides are possible, but check local weather conditions as some paths might be wetter.
While the routes listed in this guide are generally rated as 'difficult' due to their length and elevation gain, the overall gentle topography of the region means that many quiet paths and forest tracks are suitable for family-friendly rides. Look for shorter, flatter sections, especially around leisure centers like the Base de Loisirs d'Orthez-Biron, which often have shaded paths ideal for relaxed cycling with children.
Many outdoor trails in the Landes region are dog-friendly, especially forest tracks and quiet rural roads. However, it's always best to keep your dog on a leash, particularly in nature reserves or near livestock, and to check specific regulations for any protected areas you plan to enter. Ensure you carry enough water for both yourself and your dog.
The komoot community highly rates the outdoor experiences in this area, with an average score of 4.0 stars. Reviewers often praise the tranquility of the routes, the diverse landscapes ranging from pine forests to riverbanks, and the opportunity to explore the authentic Gascon countryside away from traffic.
Yes, the region has various options. You'll find small villages along the routes where you might discover local cafes or restaurants. For example, Le Jambon – Hotel Restaurant in Hagetmau is a known spot. Larger towns like Hagetmau or Orthez offer more choices for dining and accommodation. The presence of leisure centers and pilgrimage routes also means there are facilities catering to travelers.
Parking is generally available in the villages and towns that serve as starting points for these routes, such as Bergouey or Hagetmau. Look for public parking areas, often near town halls or local amenities. When starting from a specific attraction, dedicated parking facilities are usually provided, such as at the Brassempouy Prehistoric Site.
The routes in this guide feature moderate elevation gains, reflecting the undulating nature of the Gascon countryside. For instance, the Hagetmau Town Hall – A goshawk loop from Hagetmau has an elevation gain of around 609 meters over its 62 km distance, while the Brassempouy Prehistoric Site – Horsarrieu Church loop from Bergouey involves about 614 meters of climbing over 52 km. These provide a good workout without overly steep ascents.


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