Best mountain passes around Zegama are found within the Aizkorri-Aratz Natural Park, a region known for its challenging mountainous terrain. This area features significant mountain crossings and high-altitude points, famously traversed during the Zegama-Aizkorri mountain marathon. The landscape includes dense forests, rocky slopes, and high grazing lands, offering diverse natural features. These passes provide access to various hiking trails and historical routes.
Last updated: July 1, 2026
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Just above the San Adrián tunnel. You have to be a little careful on the last climb.
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This impressive hill has a long pastoral tradition. In its meadows you can see sheep and cows grazing among the limestone cliffs with a spectacular background view of valleys and mountains.
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The Otzaurte pass, 625 meters high and crowned with a hermitage and an inn, marks the gateway to the Aizkorri-Aratz Natural Park.
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But keep in mind that all those that go to the south go up, logically, on the north faces, come on, they are usually full of mud ... better for when the weather is good.
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The Venta de Otzaurte car park, right next to the hermitage, is the starting point for numerous mountain routes
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Atagoiti is located in Basque Country. From Ormaiztegi, the Atagoiti is 9.5 km long. Along this distance 322 altimeters are bridged. The average slope of the rise is, therefore, 3.4%.
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Udana from Oñati is a climb in the Basque Country region. It has a length of 6.9 kilometers and an ascent of 270 vertical meters with a slope of 3.9% on average. The top of the ascent is located at 515 meters above sea level.
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Summit over the Calzada de San Adrian tunnel
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The Zegama area, nestled in the Aizkorri-Aratz Natural Park, features several significant mountain crossings. Key locations include Otzaurte Pass, an important gateway to the Aizkorri massif, and Sancti Spiritu, legendary for its challenging climb and historical significance on the Camino de Santiago. Another unique spot is the San Adrián Tunnel, an ancient royal road with a hermitage inside. The broader Sierra de Aizkorri also offers numerous high-altitude points.
Many passes in the region provide stunning vistas. For example, Udana Pass Ascent and Atagoiti are noted for their viewpoints. The Leizarrate Summit (1,053 m), located just above the San Adrián tunnel, also offers impressive views of the surrounding mountains and valleys.
Absolutely. Sancti Spiritu is not only a challenging climb but also a site of historical significance, having served as a pilgrims' hospital on the Camino de Santiago. The San Adrián Tunnel is a natural tunnel that was once a vital ancient royal road and part of the Camino de Santiago, featuring a hermitage inside and nearby fortress ruins. These locations offer a tangible connection to centuries of travelers and pilgrims.
The region is characterized by diverse and breathtaking natural beauty. You'll encounter dense beech forests, rocky slopes, and high grazing lands. The Aizkorri-Aratz Natural Park, where these passes are located, is known for its varied ecosystems, dramatic elevation changes, and spectacular mountainous terrain.
Yes, the Zegama area offers a wide range of hiking opportunities, from moderate strolls to demanding mountaineering expeditions. Passes like Collado de Biozkorna are considered intermediate, while routes to Leizarrate Summit (1,053 m) are more challenging. The Aizkorri-Aratz Natural Park provides accessible entry to various trails, catering to different experience levels.
Beyond hiking, the Zegama area is excellent for cycling. You can find numerous road cycling routes, such as the 'Climb to the Sanctuary of Arantzazu' or the 'Otzaurte loop from Zegama'. There are also challenging MTB trails, including the 'Usurbe Summit – Murumendi Forest loop'. For more details on these activities, explore the Road Cycling Routes, Touring Bicycle Routes, and MTB Trails guides for Zegama.
Yes, several key points along the Zegama-Aizkorri mountain marathon route are significant mountain crossings. Otzaurte Pass serves as an important gateway, and Sancti Spiritu is an iconic and legendary climb on the race route, known for its electric atmosphere during the event. Exploring these areas allows you to experience parts of this world-renowned trail running course.
The best time to visit generally depends on your activity. For hiking and cycling, spring and autumn offer pleasant temperatures and vibrant landscapes. Summer is also popular, though some trails can be challenging in the heat. If you're interested in the Zegama-Aizkorri race atmosphere, it typically takes place in late May or early June. Winter conditions can be challenging, with mud and snow, especially on higher north-facing slopes.
While many routes in the Aizkorri-Aratz Natural Park can be challenging, some areas offer more accessible entry points for families. For instance, the Otzaurte Pass is an excellent starting point for various hiking trails into the surrounding mountains, providing accessible entry to diverse ecosystems. Always check specific trail difficulties and conditions before heading out with family.
Parking is available at key access points. For example, the Venta de Otzaurte car park, located right next to the hermitage at Otzaurte Pass, serves as a convenient starting point for numerous mountain routes into the Aizkorri-Aratz Natural Park.
Visitors frequently appreciate the stunning natural beauty, the challenging yet rewarding trails, and the rich historical and cultural significance of the area. The pastoral traditions, with sheep and cows grazing among limestone cliffs, and the spectacular background views of valleys and mountains, are often highlighted. The unique blend of nature and history, especially along the Camino de Santiago, also leaves a lasting impression.


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