The Top 7 Natural Monuments in Aiako Harria
Aiako Harria’s landscape is a beautiful place to explore — something that you can best experience by visiting one of our 7
beautiful natural monuments in Aiako Harria. To help you find the one for, you can see all the details you need to explore the best natural monuments, and better plan your next outdoor adventure!
beautiful natural monuments in Aiako Harria. To help you find the one for, you can see all the details you need to explore the best natural monuments, and better plan your next outdoor adventure!
Last updated: November 15, 2025
Aitzondo Waterfall
Highlight • Waterfall
The Aitzondo waterfall is located in the Aiako Harria natural park, at the western end of the Pyrenees. This waterfall is one of the largest in Guipuzcoa, with a drop of 140 meters that ends in a small pond.
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Oianleku Cromlech
Highlight • Monument
Funerary monument dating from the Iron Age and discovered in 1909 and excavated in 1967. Inside the ashes and bones of the deceased were deposited.
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Basate Summit (630 m)
Highlight • Summit
Small peak of the Aiako Harria Natural Park. A very short distance away is the megalithic remains in the form of the Oianleku cromlech.
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Dolmen Akolako Lepua I
Highlight • Historical Site
At this point the Akolako Lepua I dolmen doesn't look like much more than rocks on the ground but there is a plaque with more information. It makes an interesting stop when you are on an adventure.
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View of Aiako Harria and the Arditurri Valley
Highlight • Viewpoint
This viewpoint offers beautiful views of the mountains and forests of the Peñas de Aya natural park.
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