4.5
(711)
7,004
hikers
15
hikes
Bus station hiking trails in Ukerdiko Erreserba Integrala/Reserva Integral De Ukerdi traverse a dramatic karstic landscape within the Pyrenees, characterized by extensive limestone formations and rugged, rocky terrain. This subalpine region, part of the larger Larra Natural Reserve, features black pine forests and offers panoramic views of the Navarrese and French Pyrenees. The area provides a tranquil environment for exploring its unique geological features and diverse ecosystems.
Last updated: October 26, 2026
4.6
(20)
240
hikers
15.3km
06:03
870m
870m
Hard hike. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required.
4.5
(8)
59
hikers
11.9km
04:21
570m
570m
Hard hike. Good fitness required. Sure-footedness, sturdy shoes and alpine experience required.

5.0
(4)
29
hikers
19.3km
08:07
1,190m
1,190m
Hard hike. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required.
5.0
(2)
34
hikers
5.33km
01:40
190m
190m
Moderate hike. Mostly walkable paths. Sure-footedness required.
5.0
(1)
16
hikers
25.5km
10:04
1,220m
1,220m
Hard hike. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required.
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It's really too cool in good weather.
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Crossroads, already heading towards Anie.
2
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Ideal starting point for the route to the world-famous Anie.
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The refuge is located at an altitude of 1,670 meters on a rocky peak. It promises an exceptional 360° panorama of the many peaks. The beds are distributed in rooms ranging from 2 to 4 beds. The refuge also offers good hot meals in the evening and breakfast before setting off on the trails.
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If you arrive early you can have minutes of silence
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Exceptional spot. To fully enjoy it, sunrise or sunset are preferred.
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Pleasant cabin and well located for getting to Pic d'Anie in the early morning. During my visit (10/2023) only the SAS entrance to the cabin was accessible. The other 2 rooms were locked. Presence of a water point just a few meters from the cabin (be careful of the noise generated if you spend the night there).
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There are 12 curated hiking routes in Ukerdiko Erreserba Integrala/Reserva Integral De Ukerdi that are accessible from bus stations. These trails offer a range of experiences, from moderate to difficult, allowing you to explore the stunning Pyrenean landscapes.
The trails accessible by bus will immerse you in the dramatic karstic landscape of the Larra massif, characterized by extensive limestone formations and interspersed black pines. You'll encounter rugged, rocky terrain and enjoy breathtaking panoramic views of both the Navarrese and French Pyrenees, particularly within the subalpine core of Navarre and the broader Larra Natural Reserve.
While the routes listed are generally moderate to difficult, requiring good fitness and sure-footedness, some of the moderate trails might be suitable for families with older children who are accustomed to hiking. For example, the Monbiela (1,924 m) – Pierre Saint-Martin Pass loop from La Pierre Saint-Martin is a moderate option that offers a rewarding experience without extreme difficulty.
Many trails in the region are dog-friendly, but it's always best to check local regulations, especially within protected areas like the Integral Reserve. Ensure your dog is well-behaved, kept on a leash, and that you carry out all waste. The rugged terrain can be challenging, so consider your dog's fitness level.
Yes, several of the bus-accessible routes are circular, allowing you to start and end your hike at the same point, often near a bus stop. Examples include the challenging Pic d'Arlas – Anie Peak loop from La Pierre Saint-Martin and the moderate Monbiela (1,924 m) – Pierre Saint-Martin Pass loop from La Pierre Saint-Martin.
The best time for hiking is typically from late spring to early autumn (May to October) when the weather is more stable and trails are clear of snow. During these months, you'll experience pleasant temperatures and the full beauty of the Pyrenean landscapes. Always check local weather forecasts before heading out.
The region is renowned for its dramatic scenery. Many trails offer stunning views of the Larra karstic plateau. The Ukerdi Peak (2252m) itself provides one of the best viewpoints. You'll also encounter the unique geological formations of the Larra massif and the serene beauty of the Valle de Belagua, recognized as a significant Pyrenean ecosystem.
The bus-accessible trails in Ukerdiko Erreserba Integrala/Reserva Integral De Ukerdi are predominantly moderate to difficult. You'll find 7 moderate routes and 5 difficult routes. Difficult trails, such as the Anie Peak – Cap de la Baitch Hut loop from La Pierre Saint-Martin, often involve significant elevation gain and require good fitness, sure-footedness, and sturdy shoes.
Winter hiking is possible but requires very good fitness, specialized equipment (snowshoes, crampons, ice axe), and alpine experience due to snow and ice conditions, especially at higher elevations. The region can be challenging in winter, so it's crucial to be prepared for harsh weather and consult local conditions and avalanche warnings before attempting any winter routes.
While the Integral Reserve itself is remote and tranquil, nearby villages like Isaba or areas like La Pierre Saint-Martin (depending on your bus route) may offer cafes, restaurants, or small shops. It's advisable to carry sufficient water and snacks for your hike, as amenities directly at bus stops within the reserve are limited.
The stony slopes of Ukerdi are home to sarrios (chamois), which you might spot gracefully navigating the rugged terrain. The broader Larra Natural Reserve also supports a diverse range of Pyrenean flora and fauna, offering opportunities for wildlife observation, especially in quieter areas and during less busy times.
The duration of these hikes varies significantly based on difficulty and distance. Moderate routes, like the Monbiela (1,924 m) – Pierre Saint-Martin Pass loop, can take around 2-3 hours. More challenging routes, such as the Pas d'Azuns – Cap de la Baitch Hut loop, can extend to 10 hours or more, demanding a full day's commitment.
The area is highly rated by the komoot community, with an average score of 4.5 stars. Reviewers often praise the profound tranquility and silence of the region, the dramatic and unique karstic landscapes, and the challenging yet rewarding climbs to peaks like Anie and Ukerdi, offering unparalleled views of the Pyrenees.


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