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Valles Occidentales

The best walks and hikes in Valles Occidentales

4.5

(2687)

23,618

hikers

106

hikes

Hiking in Valles Occidentales, located in the Aragonese Pyrenees, offers diverse landscapes characterized by majestic peaks, glacial valleys, and extensive Atlantic forests. The region features impressive summits exceeding 2,600 meters, such as Bisaurín, alongside U-shaped valleys and karstic formations. Lush beech, fir, and black pine forests, including the dense Oza Forest, contribute to a rich environment. Numerous high mountain lakes, known as "ibones," also dot the landscape, providing scenic resting spots.

Best hiking trails in Valles Occidentales

  • The most popular…

Last updated: October 10, 2026

4.8

(77)

533

hikers

#1.

Ibón de Acherito Loop

10.9km

04:27

650m

650m

Hike the moderate 6.8-mile Ibón de Acherito Loop in the Aragonese Pyrenees, featuring a pristine glacial lake and stunning mountain views.

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Moderate

4.4

(30)

453

hikers

Hike the difficult Mesa de los Tres Reyes from Linza Trail, a 10.3-mile route with 3891 feet of elevation gain and panoramic summit views.

Hard
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4.8

(32)

360

hikers

12.9km

05:46

1,150m

1,150m

Hike the challenging 8.0-mile (12.9 km) Castillo d'Acher from la Selva de Oza, gaining 3760 feet (1146 metres) in under 6 hours.

Hard

Moderate hike. Good fitness required. Mostly accessible paths. Sure-footedness required.

Moderate

4.9

(8)

166

hikers

Hike the difficult Punta Bisaurin circular trail from Refugio de Lizara, covering 7.2 miles with 3595 feet of gain in 6 hours.

Hard
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Popular around Valles Occidentales

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Hiking Collection by

Ana- Remoteana

Tips from the Community

Daniele Parodi
August 7, 2026, Torre Lo Vixia

Ruins of an old fortification found right along the trail

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An imposing mountain peak in the western Pyrenees. The ascent is very beautiful, but quite strenuous. At the top, a magnificent panorama opens up.

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Refuge in a beautiful location and starting point for numerous hikes

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Pure mountain magic sitting at nearly 1,900 meters up in the Echo Valley, Ibón de Acherito is hands-down one of the coolest glacial lakes in this part of the Spanish Pyrenees. It’s tucked right into a big, rocky bowl of steep limestone cliffs that make the whole place feel super hidden and special.

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At 2,444 meters, Hiru Erregen Mahaia (or Mesa de los Tres Reyes) is the absolute highest spot in Navarre and a total classic in the Pyrenees. Fun local legend says the old kings of Navarre, Aragon, and Béarn used to meet up right at the top so they could chat without stepping foot into each other's countries!

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Near the Lizara refuge, you can enjoy a beautiful view of the valleys below and the dizzying limestone walls that tower above it.

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Great resting point with a very peculiar structure. It was invaluable to us for sheltering from a summer storm.

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Beautiful starting point for ascents in the area. Also a stopover point for multi-day treks, it is in a beautiful location and easily reachable by car

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Frequently Asked Questions

How many hiking trails are available in Valles Occidentales?

Valles Occidentales offers a wide range of hiking opportunities, with over 100 routes documented on komoot. These trails cater to various skill levels, from moderate forest walks to challenging high-altitude ascents.

What kind of terrain can I expect when hiking in Valles Occidentales?

The terrain in Valles Occidentales is highly diverse. You'll encounter majestic peaks, U-shaped glacial valleys, karstic formations, and extensive Atlantic forests of beech, fir, and black pine. Many routes also feature serene high mountain lakes, known as 'ibones', and dramatic rock formations.

Are there easy or family-friendly hiking options in Valles Occidentales?

Yes, Valles Occidentales provides options suitable for families and those seeking easier walks. While many routes are moderate or difficult, there are 6 easy trails available. The region research mentions family-friendly options through the Selva de Oza and to Aguas Tuertas, offering accessible natural beauty.

What are the most challenging hikes in Valles Occidentales?

For experienced hikers seeking a challenge, Valles Occidentales has 55 difficult routes. Notable challenging trails include the Mesa de los Tres Reyes from Linza Trail, which ascends to a prominent peak, and the Punta Bisaurín Loop from Lizara Refuge, both offering significant elevation gain and expansive views.

What natural features or landmarks can I see along the hiking trails?

Valles Occidentales is rich in natural beauty and landmarks. You can explore impressive peaks like Table of the Three Kings (Hiru Erregen Mahaia) and Castillo d'Acher. The region also features lush forests such as the Oza Forest, numerous glacial lakes like Ibón de Acherito, and unique valleys like Aguas Tuertas with its striking zigzag water currents.

What is the best time of year to hike in Valles Occidentales?

The region experiences a humid and cool climate, contributing to its lush environment. While specific recommendations depend on the trail, generally, late spring to early autumn (May to October) offers the most favorable conditions for hiking, avoiding heavy snow at higher elevations and enjoying the vibrant flora.

Are there any circular hiking routes in Valles Occidentales?

Yes, there are circular routes available. An example is the Ibón de Acherito Loop, which takes you to a picturesque glacial lake and brings you back to your starting point. Another is the Boca del Infierno – circular by the Calzada Romana and the Senda de Los Ganchos – Valle de Hecho, offering a varied experience.

What do other hikers enjoy most about Valles Occidentales?

The area is highly rated by the komoot community, with an average score of 4.6 stars from over 700 reviews. Hikers often praise the diverse landscapes, from majestic peaks to lush forests and serene glacial lakes, as well as the extensive network of routes suitable for various abilities.

Is public transport available to reach trailheads in Valles Occidentales?

Access to trailheads in Valles Occidentales primarily relies on personal vehicles due to the remote nature of many starting points. While some villages in the valleys might have limited bus services, direct public transport to specific trailheads is generally not extensive. Planning for car access or local taxi services is advisable.

Are dogs allowed on the hiking trails in Valles Occidentales?

Valles Occidentales is part of the Aragonese Pyrenees, and while many areas are dog-friendly, it's crucial to adhere to regulations, especially within the Natural Park of the Western Valleys. Dogs are generally permitted on trails but should be kept under control, often on a leash, to protect wildlife and ensure the safety of other hikers. Always check specific local signage for any restrictions.

Are there any refuges or huts available for hikers in Valles Occidentales?

Yes, Valles Occidentales offers several refuges and huts for hikers. Notable options include Lizara Refuge, Gabardito Refuge, and Linza Refuge. These provide essential services and accommodation, especially for longer treks or multi-day excursions in the high mountains.

Do I need any permits to hike in Valles Occidentales?

Generally, permits are not required for day hiking on established trails within Valles Occidentales. However, as it is a Natural Park, certain activities like camping, lighting fires, or accessing specific protected areas might require authorization. It's always recommended to check with the park authorities for the latest regulations, especially if planning an overnight stay or off-trail exploration.

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