5.0
(2)
16
riders
3
rides
Gravel biking around Guiche offers diverse terrain in the French Basque Country. The region is characterized by the confluence of the Adour and Bidouze rivers, providing accessible paths alongside waterways. Extensive wetlands, known as "barthes," offer distinct riding experiences through marshy areas. Beyond the river plains, rolling hills provide varied topography for ascents and descents, complemented by scattered forests with shaded trails.
Last updated: May 24, 2026
5.0
(2)
11
riders
63.9km
04:04
350m
350m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
4
riders
83.5km
05:29
920m
920m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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1
riders
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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Popular around Guiche
## The tunnel The tunnel, located between the Puyoô and Salies-de-Béarn stations, is one of the significant structures on line n° 662.000 connecting Puyoô to Mauléon. It is a single-track tunnel 848.5 m long and 5.00 m wide between the abutments. The height under the crown is 6.00 m. It is a multi-radius arch. The structure is generally oriented North-South, with a curve of R400 m for the first 250 meters on the North side, then a straight section to the South end. The longitudinal profile has a constant gradient of 0.01 m/m from the North. A central aqueduct equips the structure along its entire route. The maximum cover is 49 m. The tunnel is built in the Campanian flysch (Upper Cretaceous). The construction of the tunnel (1879-1883) was carried out from two headings via shafts approximately 35 m deep, located at PM219 and PM632. The shafts were retained as ventilation shafts. The masonry thicknesses (limestone rubble set in lime mortar) vary from 0.50 m to 1.20 m. The length of the tunnel, initially projected at 400 m, was increased to 787 m following the decision to lower the profile (from 20‰ to 16‰). During construction, ground instabilities encountered during the excavation of access trenches led to a further extension of the structure, which finally reached a length of 848.5 m. Numerous ground instabilities (landslides) caused significant delays in the progress of the work. The tunnel was electrified in 1930 and the overhead line equipment was removed in 1971.
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Great trail for fast bikes.
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La Bastide-Clairence is a town listed among the "Most Beautiful Villages of France." It is also known for its arts and crafts.
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Beware of the sands!
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Winding singles in the pines
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A really beautiful cycle path on an old railway line. It is completely asphalted and is therefore a wonderful ride and there are one or two bridge highlights to admire along the way.
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There are several dedicated traffic-free gravel bike trails around Guiche, offering diverse experiences. This guide features 3 carefully selected routes that prioritize quiet paths and natural beauty.
The region around Guiche, situated at the confluence of the Adour and Bidouze rivers, offers a varied landscape. You'll find flat, accessible paths alongside waterways, winding trails through unique 'barthes' wetlands, and rolling hills providing both challenging ascents and exhilarating descents. Scattered forests also add shaded sections and varied surfaces.
While many routes in the area offer a good challenge, you can find options suitable for different skill levels. For a moderate ride that explores unique wetlands, consider the Marshes d'Orx reserve – Orx marshes loop from Saint-Martin-de-Hinx. It offers a good introduction to the region's gravel paths without extreme difficulty.
Yes, all the routes featured in this guide are circular, allowing you to start and end your ride at the same point. This includes the longer, more challenging loops like the Tunnel – Château de Gramont de Bidache loop from Bidache and the shorter La Bastide-Clairence – Ruins of the Château d'Ayherre loop from La Bastide-Clairence.
The routes often pass by historical and natural points of interest. For example, the Tunnel – Château de Gramont de Bidache loop takes you near the impressive Gramont Castle in Bidache. You might also encounter charming villages like Hastingues Village and The Bastide of Hastingues, or the town of Urt.
While the routes in this guide are generally longer and more challenging, the region's riverine environments and 'barthes' wetlands often feature flatter, more accessible paths. When planning a family ride, look for sections that follow the Adour or Bidouze rivers, which tend to be less strenuous and offer a peaceful, car-free experience.
The French Basque Country generally offers pleasant cycling conditions from spring through autumn. To best enjoy the traffic-free nature of these trails, consider riding during the shoulder seasons (spring and early autumn) when the weather is mild and tourist numbers are lower than peak summer, ensuring a more serene experience on the paths.
Yes, the rolling hills surrounding Guiche provide numerous opportunities for panoramic views of the Basque countryside. Routes that venture into these elevated areas, such as the more difficult loops, will reward you with expansive vistas, especially at higher elevations.
The routes vary significantly in length. You can find shorter options like the La Bastide-Clairence loop, which is around 17.8 km, or embark on longer adventures such as the Château de Gramont loop, stretching over 83.5 km, offering options for various endurance levels.
While Guiche itself is a smaller town, the wider region has some public transport connections. For specific route starting points, it's advisable to check local bus services or regional train lines that connect to nearby larger towns like Bidache or Saint-Martin-de-Hinx, which are starting points for some of the featured tours.
Many natural areas and trails in France are dog-friendly, especially if your dog is well-behaved and kept on a leash. However, specific rules can vary for nature reserves like the Marshes d'Orx. Always check local signage or park regulations for the specific trail you plan to ride to ensure dogs are permitted.


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