Best mountain passes around Zuya/Zuia are primarily found within the Gorbeia Natural Park, a significant mountainous region in the Basque Country, northern Spain. This area features diverse terrain, including the Gorbea Massif with its 1,482-meter peak, extensive forests, and karst landscapes. The region offers numerous hiking and cycling routes through its natural features, providing varied experiences for outdoor activities. Zuia's mountain terrain provides a range of elevation and difficulty for explorers.
Last updated: May 20, 2026
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A port with little elevation change and length
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Mikel Landa's training ground. The climb to La Barrerilla from Orduña is beautiful, offering a natural view of the Orduña Valley.
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Steep road, well developed, therefore also down a pleasure
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mini port to do series on the road. with GRAVEL on a more entertaining trail
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short port with a height of 550mts. It can be climbed both by road and by path with GRAVEL and mtb. from ZAITEGI
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Continuing with the comment, the climb up the Orozko face is gentler the first few kilometres, but the last 3 kilometres have a gradient of 9% with ramps of 13%.
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Coming from Zuazo de Kuartango, it is a very good reward for the climb.
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track and path to climb AIURDIN. suitable for gravel
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The Zuya/Zuia region, largely encompassed by the Gorbeia Natural Park, offers a variety of mountain passes suitable for different activities. You'll find passes ideal for cycling, such as Alto de Dima with its long, gentle climb, and La Barrerilla Pass, known for its intense climb and views. There are also passes like Aiurdin Pass, which is suitable for gravel and mountain biking, accessible by both road and path.
Yes, for those seeking a challenge, the Zuya/Zuia region offers demanding routes. Bikotx Gane Pass (565 m) is known as one of the most feared ports in Bizkaia, featuring ramps that can reach 10-12% gradient for several kilometers. Its challenging nature makes it a popular choice for experienced cyclists.
The mountain passes in Zuya/Zuia are surrounded by the stunning landscapes of Gorbeia Natural Park. You can expect panoramic views from passes like La Barrerilla Pass, which offers great views of the Orduña Valley. Portillo de Azkarate is another curious spot with great views and a striking stone wall. The region also features extensive beech and oak forests, karst scenery with caves, and impressive waterfalls like the Altube River Waterfall and the nearby Gujuli Waterfall.
Beyond exploring the mountain passes themselves, the Gorbeia Natural Park offers a wide range of outdoor activities. You can find numerous routes for cycling, road cycling, and gravel biking. For example, there are challenging cycling routes like the 'Gorbea Summit – Gorbea Summit loop from Murgia' and various road cycling routes such as the 'Aiurdin Pass – Ullibarri-Gamboa Reservoir loop from Murgia'. You can explore more options on our Cycling around Zuya/Zuia guide, Road Cycling Routes around Zuya/Zuia guide, and Gravel biking around Zuya/Zuia guide.
While specific family-friendly or dog-friendly designations for individual passes aren't always explicit, the Gorbeia Natural Park, which encompasses much of Zuya/Zuia, offers a network of trails suitable for various levels. Many forest walks, such as those in the Altube beech forest, can be enjoyed by families. It's always recommended to check the specific trail conditions and local regulations regarding dogs before heading out.
The best time to visit the mountain passes and the Gorbeia Natural Park generally depends on your preferred activity. Spring and autumn offer pleasant temperatures for hiking and cycling, with vibrant flora in spring and beautiful foliage in autumn. Summer is also popular, though it can be warmer. Winter can bring snow to higher elevations, making some routes more challenging or requiring specific gear, but it also offers unique snowy landscapes.
Near the mountain passes, particularly in the Peñas de Oro area, you can find the 16th-century Sanctuary of Oro. This historical building is nestled within the mountainous landscape and serves as a starting point for paths leading to viewpoints like the Cross of Atxabal, offering a blend of natural beauty and cultural heritage.
Visitors frequently appreciate the diverse experiences offered by the mountain passes. Many enjoy the demanding yet beautiful scenery and low traffic on routes like Alto de Dima. The intense climbs and rewarding views, such as those from La Barrerilla Pass overlooking the Orduña Valley, are also highly praised. The region's combination of natural beauty, varied terrain, and opportunities for cycling and hiking makes it a favorite among outdoor enthusiasts.
Yes, the Zuya/Zuia region is well-suited for gravel biking. Aiurdin Pass, for instance, is an intermediate mountain pass that can be climbed by both road and path, making it suitable for gravel bikes. You can find more gravel biking routes and inspiration in our dedicated Gravel biking around Zuya/Zuia guide.
While specific parking details for each pass are not always listed, the Gorbeia Natural Park, which hosts many of these passes, has visitor centers, including one in Sarría (Zuia), that can provide information on access, parking, and local transport options. It's advisable to check with these centers or local tourism offices for the most up-to-date logistical information before your visit.
The highest point in the Zuya/Zuia mountain region, and indeed in both the Álava and Biscay provinces, is Mount Gorbeia, standing at 1,482 meters. While not a pass itself, the Gorbea Massif offers various routes to its summit, which is famously crowned by a 17-meter tall cross, providing panoramic views.


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