4.2
(66)
446
riders
92
rides
Touring cycling around Castétis offers a diverse landscape characterized by the presence of the Barthes de Biron lakes and the historical Pont Vieux of Orthez. The region features a mix of flat, easy routes along waterways and more challenging paths with moderate elevation changes. Cyclists can expect to traverse rural roads and paths that connect natural areas with small towns.
Last updated: August 27, 2026
5.0
(1)
10
riders
39.5km
02:57
490m
490m
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
7
riders
30.7km
02:27
400m
400m
Hard bike ride. Good fitness required. You may need to push your bike for some segments of this route.

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8
riders
71.8km
04:26
670m
670m
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
4.0
(2)
6
riders
34.2km
02:06
280m
280m
Moderate bike ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
4.0
(2)
10
riders
Easy bike ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.
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AWESOME!!! when there is 35 degrees outside, you want to stay there forever
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Very beautiful greenway, very pleasant
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Chateau built by Gaston VIl Moncade from 1242 to 1262, protected by 3 lines of fortifications, and a "V"-shaped masonry moat. The main building protected the entrance to the keep. The ground floor, a pentagonal keep, without a door, served as a prison; on the first floor was the guardroom. This Castle was redeveloped by Gaston Febus in the 14th century. It was burned during the Wars of Religion, in 1569, and sold, at the Revolution, to demolition contractors who dismantled it. Remains restored in 1845.
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## 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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A really very beautiful and well-restored church 👍🏽 Well worth seeing 🤩
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The “Principality of Laàs” is a particularly friendly place worth seeing; on the “Boulevard Laàs Vegas” you can meet well-known and lesser-known people with a connection to the community. At the entrance to the town you will be greeted by a customs house with a barrier :-)
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There are over 100 touring cycling routes around Castétis, offering a wide range of options for different skill levels and preferences. The komoot community has explored these routes over 400 times.
Yes, Castétis offers several easy touring cycling routes. For a relaxed outing, consider the Lakes of the Barthes de Biron – Orthez-Biron Leisure Park loop from Orthez, which is 10.1 miles (16.2 km) long and provides a gentle ride around scenic lakes.
The region features a mix of flat, easy routes along waterways and more challenging paths with moderate elevation changes. You'll typically traverse rural roads and paths connecting natural areas with small towns, often encountering serene lake areas and historical bridges.
Absolutely. For a more demanding ride, the Lakes of the Barthes de Biron – Pont Vieux of Orthez loop from Castétis is a difficult 24.6 miles (39.5 km) trail with significant elevation gain, connecting natural lake areas with historical landmarks.
Many routes pass by significant points of interest. You can cycle past the historic Pont Vieux of Orthez, explore the serene Lakes of the Barthes de Biron, or even spot the Moncade Castle - Orthez. Other attractions include Saint Peter's Church and Sauvelade Abbey.
Yes, many routes in the Castétis area are designed as loops. An example is the Lakes of the Barthes de Biron loop from Biron, a 21.1 miles (34.0 km) trail that takes you through the picturesque lake district.
Spring and autumn generally offer the most pleasant conditions for touring cycling in Castétis, with milder temperatures and beautiful scenery. Summer can also be enjoyable, but it's advisable to start early to avoid the midday heat.
The area is highly rated by the komoot community, with an average score of 4.4 stars from over 50 reviews. Cyclists often praise the serene lake areas, historical bridges, and the variety of routes suitable for different ability levels.
Yes, Orthez is a common starting point or feature on several routes. For instance, the Le Pont-Vieux (Orthez) – Pont Vieux of Orthez loop from Sarpourenx is an easy 15.8 miles (25.5 km) route that highlights the historic bridge.
Certainly. Many easy routes can be completed within a couple of hours. The Pont Vieux of Orthez – Lakes of the Barthes de Biron loop from Lapeyrère is an easy 15.8 miles (25.4 km) route, typically completed in under 2 hours, offering a great option for a shorter ride.


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