Best natural monuments around Alonsotegi are found in this highly mountainous municipality in Bizkaia, Spain. This region is characterized by steep slopes, diverse ecosystems, and panoramic views. It offers access to several notable natural monuments and scenic routes, making it a destination for nature lovers and hikers. The area provides a variety of outdoor experiences within its natural landscape.
Last updated: May 3, 2026
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Highlight • Summit
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Highlight • Summit
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Highlight • Summit
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Popular around Alonsotegi
The summit is 250 meters high and can be reached via a singletrack trail from the forest road. It's best to climb from the Bilbao side and then descend the singletrack towards Basauri. Coming from Basauri, it's not really rideable; pushing would be necessary.
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Duuuurious slopes up, but very good reward views.
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I understood that this was Peñas Blancas or Apuko Txiki, and that Apuko is the next one, which is higher. I'm in a mess. What about this...??
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summit near Bilbao of almost 1000 meters above sea level, views of the Villa and the sea in good weather
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A very nice peak, with great views and easy access.
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Wonderful views, and very comfortable to go through the neighboring hills and mountains.
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The Ganekogorta is one of the "vocineros" mountains of Bilbao. Well known and frequented by those of the "Botxo".
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It is a very good area for hiking.
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Alonsotegi offers several natural monuments with impressive panoramic views. The Ganekogorta Summit, at 998 meters, provides breathtaking vistas. Similarly, the Eretza Summit (887 m) offers excellent views of Bilbao and the surrounding mountains. Mount Pagasarri also features the Mirador de Unbe, known for its unparalleled panoramic views.
Yes, for experienced hikers, the Ganekogorta Summit is known for its challenging routes. The Eretza Summit (887 m) also involves strenuous climbs but rewards with spectacular views. These peaks are often combined for more demanding treks.
Beyond the summits, you can explore the historical 'Neveras' on Mount Pagasarri, 17th-century natural fridges used to store snow. The Ruta de Peñas Blancas features striking karstic limestone formations resembling 'needles.' For history enthusiasts, the Hirumugarrieta Megalithic Site provides insight into Bronze Age cultural manifestations with its dolmen.
Yes, the Gaztelu / Kukurrustu Summit (250 m) is categorized as family-friendly, offering a comfortable route and beautiful surroundings. The lower slopes of Mount Pagasarri also provide well-marked trails suitable for various fitness levels, including families.
In the mountainous areas like Ganekogorta Summit, you might spot wild ponies. The diverse ecosystems of Mount Pagasarri also make it a popular spot for birdwatching, offering a chance to see various species in their natural habitat.
The Hirumugarrieta Megalithic Site is a significant historical monument, featuring a dolmen from the Bronze Age. Additionally, the Ruta de las Minas y Sales offers a journey through the region's mining and pastoral past, with remnants of old mines and historical 'seles' (circular land plots).
The region is excellent for various outdoor activities. You can find numerous MTB trails, gravel biking routes, and road cycling routes. For example, you can explore the MTB Trails around Alonsotegi, enjoy Gravel biking around Alonsotegi, or take on Road Cycling Routes around Alonsotegi.
Yes, the Ruta de las Minas y Sales (Mines and Salt Route) is a unique trail that traverses the mountainous slopes of the Ganekogorta massif. It allows you to explore old mines, observe ancient stones, and discover mythical fountains, offering insights into the region's mining and pastoral history.
Visitors frequently praise the breathtaking panoramic views from summits like Ganekogorta and Eretza. The opportunity to encounter wild ponies and the comfortable, beautiful surroundings of routes like the one to Gaztelu / Kukurrustu Summit are also highly appreciated.
The region's natural monuments, characterized by steep slopes and diverse ecosystems, are generally enjoyable during milder weather. Spring and autumn offer pleasant temperatures for hiking and exploring. Clear days are ideal for experiencing the panoramic views from the summits.
The Apuko Summit (469 m) is noted for its easy access and great views, making it a pleasant option for a shorter walk. The Gaztelu / Kukurrustu Summit (250 m) also offers a comfortable route suitable for less strenuous activity.
Yes, the Ruta de Peñas Blancas follows ancient paths and forms part of the Coastal Camino de Santiago. This route allows you to combine natural beauty, unique geological features, and cultural significance by connecting several traditional hermitages while walking a segment of the historic pilgrimage.


Extend your search for the best caves by checking out these guides of the top ones around Alonsotegi: