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Spain
Basque Country
Gipuzkoa
Alto Deba

Aizkorri-Aratz parke naturala/Parque Natural de Aizkorri-Aratz

Routes
Hikes
Spain
Basque Country
Gipuzkoa
Alto Deba

Aizkorri-Aratz parke naturala/Parque Natural de Aizkorri-Aratz

The best walks and hikes around Aizkorri-Aratz parke naturala/Parque Natural de Aizkorri-Aratz

4.6

(1361)

10,953

hikers

117

hikes

Hiking trails around Aizkorri-Aratz parke naturala/Parque Natural de Aizkorri-Aratz traverse a diverse landscape featuring the highest massifs in the Basque Country, including peaks like Aitxuri (1,551 m) and Aizkorri (1,544 m). The region is characterized by a spectacular limestone karst landscape, dense beech and oak forests, and expansive Urbia Grasslands dotted with ancient dolmens. This second-largest protected area in the Basque Country offers varied terrain from high mountain flora to deep ravines, providing a range of experiences for hikers.

Best hiking trails around Aizkorri-Aratz parke naturala/Parque Natural de Aizkorri-Aratz

  • The most popular hiking route is Aizkorri via the San Adrián pass — circular route through the Aizkorri-Aratz Natural Park, a 4.5 miles (7.2 km) trail that takes 3 hours 48 minutes to complete, offering views of the Aizkorri massif.
  • Another top favourite among local hikers is The Hidden Path (PR-GI 3005), a moderate 4.7 miles (7.6 km) path. This route winds through forested areas and offers a glimpse into the park's natural beauty, typically completed in 2 hours 20 minutes.
  • Local hikers also love the Circular hike from Urkulu reservoir — through the Aizkorri-Aratz Natural Park, a 9.1 miles (14.6 km) trail leading through the scenic reservoir area and surrounding forests, often completed in about 4 hours 44 minutes.
  • Hiking around Aizkorri-Aratz parke naturala/Parque Natural de Aizkorri-Aratz is defined by high mountain peaks, extensive beech forests, and unique limestone karst formations. The network offers options for various ability levels, from moderate forest walks to challenging ascents.
  • The routes in Aizkorri-Aratz parke naturala/Parque Natural de Aizkorri-Aratz are highly rated by the komoot community with an average score of 4.6 stars from more than 400 reviews. More than 4000 hikers have used komoot to explore Aizkorri-Aratz parke naturala/Parque Natural de Aizkorri-Aratz's varied terrain.

Last updated: July 7, 2026

4.8

(25)

185

hikers

#1.

Aizkorri via the San Adrián pass — circular route through the Aizkorri-Aratz Natural Park

7.18km

03:48

620m

620m

Hard hike. Good fitness required. Sure-footedness, sturdy shoes and alpine experience required.

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Hard

4.5

(35)

107

hikers

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

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

Moderate

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

Moderate

Hard hike. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required.

Hard
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Popular around Aizkorri-Aratz parke naturala/Parque Natural de Aizkorri-Aratz

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Euskal Herria footpath (GR 12) – The infinite mountain range

Hiking Collection by

Peaknik

Tips from the Community

oscargynko
September 20, 2025, Buetraitz Peak (1,320 m)

A delightful summit, and the final arrival is not complicated, despite the karst.

Translated by Google

1

0

A delightful summit, and safe on the way up, despite the karst.

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1

0

Z fix hey

0

0

This year with the heavy rainfall, some mud and water obstacles are a challenge or a lot of work to clean the shoes 😁

Translated by Google

0

0

One of the highest points in the Basque Country, let yourself be enveloped by the fog and it will seem like a magical place.

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0

0

This walk is beautiful but we did it in April and it was very wet and slippery. There was a part with lots of stones and mud and leaves where you sank half a meter. Not very steep until the sanctuary. There we had to zigzag very steeply up the rock. Better to walk up than down but that part is strenuous and not average.

Translated by Google

2

0

You can climb on foot, gravel and MTB.

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0

0

oscargynko
December 26, 2024, San Adrián Tunnel

A place to remember, a joy to visit.

Translated by Google

4

0

Frequently Asked Questions

What types of landscapes can I expect to see while hiking in Aizkorri-Aratz Natural Park?

Aizkorri-Aratz Natural Park offers a diverse range of landscapes, from the highest massifs in the Basque Country, including peaks like Aitxuri (1,551 m) and Aizkorri (1,544 m), to spectacular limestone karst formations. You'll also find extensive beech and oak forests, such as the monumental Iturrigorri beech forest, and the expansive Urbia Grasslands dotted with ancient dolmens. The park's topography includes deep ravines and high mountain flora, providing varied scenery for every hike.

Are there any easy hiking routes suitable for beginners or families in Aizkorri-Aratz Natural Park?

Yes, Aizkorri-Aratz Natural Park offers several easy routes. While many trails are moderate to difficult, there are 7 routes classified as easy. These typically involve less elevation gain and shorter distances, making them suitable for a more relaxed outing or for families with children. Look for paths that traverse the lower forest areas or the gentler sections of the Urbia Grasslands.

What are some notable landmarks or natural features to look out for on the trails?

The park is rich in natural and historical landmarks. You can explore the historic San Adrián Tunnel, which was part of the Camino Real and Way of St. James. The Aizkorri Summit (1,523 m) and Aratz Summit (1,445 m) offer breathtaking views. Don't miss the Sanctuary of Arantzazu, perched over a deep gorge, which is a significant architectural and cultural site.

Can I find circular hiking routes in Aizkorri-Aratz Natural Park?

Yes, the park features many excellent circular hiking routes. One popular option is the Circular hike from Urkulu reservoir, which leads through scenic reservoir areas and surrounding forests. Another is the challenging Aizkorri via the San Adrián pass, offering stunning views of the Aizkorri massif.

What is the best time of year to go hiking in Aizkorri-Aratz Natural Park?

The best time for hiking in Aizkorri-Aratz Natural Park is generally from spring to autumn (April to October). During these months, the weather is milder, and the trails are more accessible. Spring brings vibrant flora, while autumn showcases stunning fall foliage in the extensive beech and oak forests. Winter hiking is possible but requires appropriate gear and experience due to snow and potentially challenging conditions in higher elevations.

Are there any challenging hikes for experienced mountaineers?

Absolutely. Aizkorri-Aratz Natural Park is home to the highest massifs in the Basque Country, offering numerous challenging routes. For instance, the Aratz and the integral cordal of the Montes de Altzania route is a difficult 12.2 km trail with significant elevation gain, ideal for experienced hikers seeking a strenuous adventure.

What do other hikers enjoy most about Aizkorri-Aratz Natural Park?

The area is highly rated by the komoot community, with an average score of 4.6 stars from over 400 reviews. Reviewers often praise the park's diverse terrain, from high mountain peaks to extensive beech forests, and the unique limestone karst formations. Many appreciate the well-maintained trails and the sense of immersion in nature, along with the historical and cultural points of interest like the San Adrián Tunnel.

Is Aizkorri-Aratz Natural Park accessible by public transport, and are there parking facilities?

While specific public transport routes directly into all trailheads can be limited, visitor centers in Araia, Zegama, and near the Arantzazu Sanctuary can provide more detailed information on local transport options. For those traveling by car, parking facilities are available at various popular starting points, including near the Urkulu reservoir and the Arantzazu Sanctuary, making many trails accessible.

Are there any specific trails that offer great viewpoints?

Many trails in Aizkorri-Aratz Natural Park offer spectacular viewpoints, especially those leading to higher elevations. The routes ascending to peaks like Aizkorri Summit or Aratz Summit provide panoramic vistas of the surrounding Basque Country. The Urbia Grasslands also offer expansive, open views, particularly at sunrise or sunset.

Are dogs allowed on the hiking trails in Aizkorri-Aratz Natural Park?

Generally, dogs are permitted on hiking trails within Aizkorri-Aratz Natural Park, but it's crucial to keep them on a leash to protect wildlife and ensure the safety of other hikers. Always check for specific signage at trailheads, as some sensitive areas or protected zones might have restrictions. Remember to carry water for your dog and clean up after them.

What is the total number of hiking routes available in the park?

There are over 120 hiking routes documented in Aizkorri-Aratz Natural Park, catering to a wide range of abilities and preferences. This extensive network ensures that whether you're looking for a short, easy stroll or a multi-hour challenging ascent, you'll find a suitable path to explore the park's diverse natural beauty.

Most popular routes around Aizkorri-Aratz parke naturala/Parque Natural de Aizkorri-Aratz

Family-friendly hikes around Aizkorri-Aratz parke naturala/Parque Natural de Aizkorri-Aratz

Most popular attractions around Aizkorri-Aratz parke naturala/Parque Natural de Aizkorri-Aratz

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