The best walks and hikes around Kortezubi
4.4
(1125)
6,634
hikers
223
hikes
Hiking around Kortezubi offers diverse landscapes within the Urdaibai Biosphere Reserve. The region is characterized by a mix of dense woodlands, gentle hills, and proximity to coastal or riverine environments. Trails often connect natural areas with historical and cultural sites, providing varied scenery. The elevation changes are generally moderate, making many routes accessible for different fitness levels.
Best hiking trails around Kortezubi
- The most popular hiking route is Visitor center – Oma Forest loop from Ereño, a 4.5 miles…
Last updated: November 8, 2026
4.3
(46)
638
hikers
6.92km
02:00
180m
180m
Moderate hike. Good fitness required. Easily walkable paths.
4.6
(21)
160
hikers
6.73km
01:59
190m
190m
Easy hike. Easily walkable paths.
4.2
(11)
34
hikers
4.16km
01:09
70m
70m
Easy hike. Easily walkable paths.
4.3
(6)
41
hikers
Moderate hike. Good fitness required. Easily walkable paths.
4.1
(10)
34
hikers
Easy hike. Easily walkable paths.
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Tips from the Community
The way there and back, with 2.8 km each, is a bit tedious, but it's worth it. Free tickets are available online.
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A visit to the renovated Oma forest is highly recommended. There are 32 marked points on the ground, which even indicate the direction to look to see the visual combinations between the trees.
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Right at the beginning of the Oma forest trail.
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I didn't actually make it to the same summit, because besides there being no trail, it was full of thorns.
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The old brick factory and chimney of Murueta are a vestige of the industrial tradition linked to the Urdaibai marshes, a reminder of the recent past that today blends into the natural landscape of the reserve.
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The Urdaibai Bird Center is an internationally renowned observatory that allows visitors to discover the wealth of migratory birds that pass through this reserve throughout the year. In addition to its viewing platforms overlooking the marshes, it features interactive spaces where visitors can learn about the ecological importance of Urdaibai and its role in global migration routes.
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Although the current hermitage, located in the Isla Bekoa neighborhood of Gautegiz Arteaga, was built in the 16th century, its head features an inlaid window of clear pre-Romanesque origin from the mid-10th to the 11th century.
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The municipality of Gautegiz-Arteaga preserves the only tidal flour mill that once existed on the Urdaibai estuary: the Ozollo Errota tidal mill. Furthermore, the Arteaga mill is the best preserved and the only one that retains most of its facilities. The mill was built around 1683, in the marshland of Laida Beach, in the Kanala area. An area of the marsh was used for its construction, enclosing it with walls, and it was fed by the dam in the rear reservoir. In addition to the milling house, where the drive wheels were installed, the mill has a building at the lowest point of the reservoir. This is a house located on the edge of the estuary, above the same water inlet and outlet. Therefore, the Ozollo Errota tidal mill is the most notable heritage structure in Urdaibai. The mill ceased to operate in the early decades of the 20th century and has been privately owned for several years.
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Frequently Asked Questions
How many hiking trails are available around Kortezubi?
There are over 200 hiking routes around Kortezubi, offering a wide variety of options. This includes more than 60 easy trails, over 120 moderate routes, and nearly 30 more challenging hikes, catering to all experience levels.
Are there easy hiking trails suitable for beginners or families in Kortezubi?
Yes, Kortezubi offers many easy trails perfect for beginners or families. For instance, the Arteaga Castle – Urdaibai Bird Center loop from Urdaibaiko biosfera erreserba is an easy 4.4 km path that takes about 1 hour 13 minutes, offering views of the historic Arteaga Castle and opportunities for birdwatching.
What kind of natural attractions can I see while hiking in Kortezubi?
Kortezubi is located within the Urdaibai Biosphere Reserve, offering diverse natural beauty. You can explore the unique Oma Forest, enjoy views over the Urdaibai marsh, or visit the Urdaibai estuary itself. The region is characterized by dense woodlands and gentle hills.
Are there any circular walking routes in Kortezubi?
Many trails in Kortezubi are designed as circular routes, allowing you to start and end at the same point. An example is the Visitor center – Oma Forest loop from Ereño, a 7.2 km moderate trail that takes around 2 hours 5 minutes to complete.
What do other hikers enjoy most about the trails in Kortezubi?
The hiking trails in Kortezubi are highly rated by the komoot community, with an average score of 4.4 stars from over 800 reviews. Hikers often praise the diverse landscapes, the mix of natural areas with historical sites, and the well-maintained paths within the Urdaibai Biosphere Reserve.
Are there any historical or cultural landmarks to explore on hikes around Kortezubi?
Yes, Kortezubi's trails often connect natural areas with significant historical and cultural sites. You can hike past the historic Arteaga Castle, or visit the Old Tree of Gernika (Gernikako Arbola), a symbol of Basque liberties, which is accessible from some routes.
What is the typical duration for hikes in Kortezubi?
Hikes in Kortezubi vary in duration. Many popular routes range from 1 to 3 hours. For example, the Visitor center – Arteaga Castle loop from Ereño is a 6.2 km trail that typically takes about 1 hour 46 minutes.
Are there any trails that offer birdwatching opportunities?
Absolutely. Given its location within the Urdaibai Biosphere Reserve, an important wetland, many trails offer excellent birdwatching. The Arteaga Castle – Urdaibai Bird Center loop from Urdaibaiko biosfera erreserba specifically highlights opportunities for birdwatching near the Urdaibai estuary.
What are the elevation changes like on trails in Kortezubi?
The elevation changes on trails around Kortezubi are generally moderate. The region features gentle hills rather than steep mountains, making many routes accessible for different fitness levels. For instance, a 7.2 km moderate trail like the Visitor center – Oma Forest loop from Ereño has an elevation gain of about 185 meters.
Can I find longer, more challenging hikes in Kortezubi?
While many trails are easy to moderate, there are nearly 30 more difficult routes for those seeking a greater challenge. One longer moderate option is the Agonía de Fuego Sculpture – Market Woman Statue loop from Institutoa, which covers 12 km and takes approximately 3 hours 2 minutes.
Are there any viewpoints or scenic spots along the hiking paths?
Yes, the region offers several scenic viewpoints. You can find stunning views over the Urdaibai marsh, or ascend to the View from San Pedro de Atxarre for panoramic vistas of the surrounding landscape.
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