Best natural monuments around Lezama are found within a region characterized by its natural setting in the Txorierri valley, bordered by the Ganguren range. This geographical position provides access to a diverse natural landscape. The area offers opportunities to explore various natural features and serves as a gateway to significant natural parks in the surrounding Basque Country. These natural spaces include summits, waterfalls, and historical sites.
Last updated: June 18, 2026
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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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The summit of the Unbe (302 metres) is the highest in the massif of the same name.
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This modest northern peak of neighboring Burbilla is easy to reach and has an altitude of 635 meters above sea level. You will find a small figure of a red-roofed house marking the summit with the information on the plate.
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The summit of Unbe (302 meters) is the highest in the massif of the same name. When you reach its highest part you will discover its curious mailbox: a nice blue "beggar" who carries his backpack.
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curious waterfall of a dam
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Comfortable route and beautiful surroundings.
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Hirumugarrieta is a megalithic station located in the pastoral station of Artxanda, in the mountain range that surrounds Bilbao, near Mount Avril. The dolmen has a rectangular chamber. Surrounding it was the galgal composed of slabs folded towards the center of the funerary monument. It has been recently excavated, so this monument constitutes a starting point for the study of the cultural manifestations of the Bronze Age of the Artxanda pastoral station, also allowing analogies and differences to be established with other pastoral stations in the territory.
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Lezama, situated in the Txorierri valley, offers access to a diverse natural landscape. You can explore various natural features including summits like Gaztelu / Kukurrustu Summit (250 m) and Unbe Summit, and the unique Bolintxu Waterfall. The broader Basque Country also features extensive forests, caves, and coastal areas within its natural parks.
Yes, you can visit the Hirumugarrieta Megalithic Site, which features a dolmen with a rectangular chamber. This site provides insights into Bronze Age cultural manifestations in the Artxanda pastoral station.
For families, the Gaztelu / Kukurrustu Summit (250 m) offers comfortable routes and beautiful surroundings suitable for a family outing. Additionally, the Aramotz North Summit is also considered family-friendly, offering a modest peak with views.
The area around Lezama is excellent for outdoor activities. You can find numerous hiking and cycling routes. For hiking, consider trails like the 'Hirumugarrieta Megalithic Site – Kastillako (385 m) loop' or the 'Gaztelumendi Summit and Bunker loop'. For cycling, options include the 'Ermita de Santa Cruz loop' or the 'Pass Aretxabalagana – Larrabetzu Old Town loop'. You can find more details on these activities in the Hiking around Lezama and Cycling around Lezama guides.
While Lezama itself is in a natural setting, it serves as a gateway to several significant natural parks in the surrounding Basque Country. These include Gorbeia Natural Park, known for its forests, caves, and waterfalls; Urkiola Natural Park with its mountainous terrain; and Urdaibai Biosphere Reserve, a UNESCO site perfect for birdwatching and exploring diverse ecosystems, including the unique Oma Painted Forest. Another option is Armañón Natural Park, famous for its subterranean caves, such as Pozalagua Cave.
Beyond the local summits and the Bolintxu Waterfall, the wider region offers impressive geological diversity. Gorbeia Natural Park features caves and waterfalls, while Armañón Natural Park is renowned for its more than 200 subterranean caves, including Pozalagua Cave with its eccentric stalactites.
The natural monuments and parks around Lezama can be enjoyed throughout the year, but spring and autumn generally offer pleasant temperatures for hiking and exploring. Summer is also suitable, especially for higher altitude areas or shaded forest trails. Always check local weather conditions before your visit.
Yes, the Bolintxu Waterfall is noted as dog-friendly, allowing you to enjoy the forest and viewpoint with your canine companion. The Aramotz North Summit also welcomes dogs.
Several natural monuments offer excellent viewpoints. The Gaztelu / Kukurrustu Summit (250 m) and Unbe Summit both provide great views. Additionally, the Bolintxu Waterfall has a dedicated viewpoint to appreciate its unique appearance.
While specific public transport details for each monument can vary, Lezama's location in the Txorierri valley means it has connections to the wider Bilbao metropolitan area. For detailed public transport information to specific trailheads or natural parks, it's advisable to consult local transport authority websites or tourist information centers in Bilbao or Lezama.
For autumn visits, it's recommended to wear layers as temperatures can vary. Good hiking shoes are essential, especially for trails that might be wet or uneven, such as those leading to the Bolintxu Waterfall. A waterproof jacket is also advisable for unpredictable weather.
While specific crowd levels can fluctuate, exploring the various trails and lesser-known paths within the Ganguren range foothills can offer a more tranquil experience. Visiting during off-peak hours or weekdays can also help avoid larger crowds at popular spots like summits or waterfalls.


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