Best natural monuments around Ollo offer diverse landscapes for exploration. The region features geological formations, elevated viewpoints, and water features. Visitors can discover natural arches, waterfalls, and mountain summits. These natural sites provide opportunities to experience the area's varied terrain.
Last updated: July 1, 2026
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Highlight • Religious Site
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Small in size, but of great beauty.
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A paradisiacal place and a stone's throw from the parking lot. Of course, when the ground is wet, access will be very difficult.
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Right next to the famous San Donato hermitage.
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A joy, a reward after the effort of the climb.
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Always impressive, I love it, absolutely recommended!!
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The Portupekoleze arch-cave, located in the Urbasa mountain range, is the spectacular result of water erosion, which over the millennia has created this enormous arch in the rock.
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Of the most accessible and cool places with snow, the car park is less than 1 kilometer away
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Beautiful arch very close to the sale of Lizarraga. It can be accessed from the lower track or going up close to the cut from the inn itself. You can go down to the lower cave. This arch is an unavoidable "must" if you are in the area.
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Among the most popular natural monuments, you'll find Beriain Summit, which offers extensive panoramic views of the Sakana and Sierra de Aralar. Another favorite is Portupekoleze Arch, a natural arch and cave formation, and the picturesque Artazul Waterfall, a 40-meter cascade.
Yes, Portupekoleze Arch is considered family-friendly and easily accessible, with parking less than a kilometer away. It's a great spot for all ages to explore a natural arch and cave.
Portupekoleze Arch is noted for its accessibility, with a car park conveniently located less than 1 kilometer from the site. This makes it a good option for visitors seeking easier access to natural formations.
Ollo's natural monuments feature a diverse range of natural formations. You can expect to see impressive natural arches like Portupekoleze Arch, stunning waterfalls such as Artazul Waterfall, and majestic mountain summits offering panoramic views, including Beriain Summit and Beriainpunta. Many sites also offer excellent viewpoints and caves.
Yes, the Ermita de San Donato is a notable historical and religious building located on a summit. It offers beautiful views and is a popular spot, especially in good weather.
While specific seasonal data isn't available, visitor tips suggest that good weather enhances the experience, especially for places like Ermita de San Donato. For Artazul Waterfall, be aware that the path can be flooded, muddy, and slippery when the ground is wet, so drier seasons might be preferable for easier access.
The area around Ollo offers various outdoor activities. You can find numerous cycling routes, including touring bicycle options like the 'Plazaola Greenway Loop' or 'Zuarrarrate Pass (780 m) – Plazaiola Greenway loop from Arakil' mentioned in the Cycling around Ollo guide. For mountain biking, explore trails such as 'Eltxumendi and San Gregorio Loop via Plazaola Greenway' or 'San Miguel de Aralar and Artxueta Loop' from the MTB Trails around Ollo guide. Road cycling enthusiasts can also find challenging routes like the 'Lizarrusti Pass – Azpirotz Pass loop from Irurtzun' in the Road Cycling Routes around Ollo guide.
Yes, for some natural monuments, parking is conveniently located. For instance, there is a car park less than 1 kilometer away from Portupekoleze Arch, making it easily accessible.
For breathtaking panoramic views, Beriain Summit is highly recommended, offering extensive vistas of the Sakana and Sierra de Aralar. The Ermita de San Donato also provides beautiful views from its elevated position, as does Beriainpunta.
Visitors frequently praise the stunning panoramic views, especially from summits like Beriain Summit. The beauty and accessibility of formations like Portupekoleze Arch are also highly appreciated. Many find the picturesque paths leading to sites like Artazul Waterfall to be wonderful, making the journey as enjoyable as the destination.
While specific regulations for dogs at each natural monument are not detailed, it's generally advisable to keep dogs on a leash and follow local signage. Always ensure you clean up after your pet to preserve the natural environment for all visitors.
The duration varies depending on the monument and your activity. For instance, Artazul Waterfall is described as 'a stone's throw from the parking lot,' suggesting a relatively short visit. However, reaching Beriain Summit involves a 'hard climb,' indicating a more significant time commitment for hiking.


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