Best attractions and places to see around Nabarniz include a rich array of natural beauty, historical landmarks, and cultural sites. Situated within the Urdaibai Biosphere Reserve at the foot of Mount Iluntzar, Nabarniz is the highest town in the region, offering expansive views. The area features diverse landscapes, from indigenous forests and green meadows to high valleys, making it a destination for nature exploration and historical discovery.
Last updated: May 9, 2026
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The Oma Forest - Omako basoa in Basque - is also known as the painted forest, the enchanted forest or even the Ibarrola Forest. Its most common name - Oma Forest - refers to the district in which it is located, which belongs to the municipality of Kortezubi. This original work of art was created between 1982 and 1985, when the Basque painter and sculptor Agustín Ibarrola used the trunks of trees as a kind of canvas for a total of 47 images. On them he painted animals, geometric figures and people, or just parts of them, such as eyes and lips. In addition, many of the compositions do not consist of a single tree, but must be viewed in the context of several tree trunks. To do this, you must pay attention to the signs on the ground that tell the viewer where to stand in order to enjoy the whole image.
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When the Condor attacked, the residents of Guernica tried to protect the tree with their bodies because it is sacred to the Basques. Even today, elected politicians have to swear their loyalty to the Basque Country at an oak tree that stands a few meters away.
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A peaceful, pretty and quiet walk. Recommended with children.
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In 1982, artist Agustín Ibarrola began painting the pine trees in the forest near his homestead with the intention of using the landscape as a canvas to give continuity to his artistic expression. It is at this moment when he decides to break the law of perspective and transgress the three-dimensionality of a white line until it becomes two-dimensional. From then on, he explored the possibilities offered by the arrangement of the forest trees, playing with the different planes of depth and creating artistic sets composed of human figures, curves or straight lines, and circles of intense colors. The ideas and concepts that it develops become more complex and advances in various directions as the painted forest expands. With the help of two students from the Faculty of Fine Arts of the UPV/EHU, he carried out a large part of the work that was open to the public until 2018, at which time the biological cycle of the forest came to an end. Given the importance that the work had acquired, the Provincial Council of Bizkaia began the process of making the Forest last, for which it had from the first moment the support of the artist who had made clear his desire for the forest to survive. In this way and in order to preserve El Bosque de Oma, the Ibarrola work has been moved to a new location, also recovering original artistic ensembles lost due to felling, attacks and natural tree falls. Today we can enjoy El Bosque de Oma more complete and more faithful to the artist's original idea.
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The Forest of Oma is one of the best-known works of the Basque artist Agustín Ibarrola and is an expression of the artistic movement known as Art and Nature, which emerged in the late sixties of the 20th century and whose purpose is to convey artistic work to the natural environment, using the landscape as a framework, support and raw material for the artist. The work, located in the town of Kortezubi (Bizkaia), is made up of several sets of geometric motifs and figures painted on the trunk of radiata pine trees. The use of natural living supports, the play of two-three-dimensionality and the experience of placing the visitor at the center of the work of art through his discovery, as well as the diversity of responses it proposes, make this work a reference of the Art and Nature movement and of Basque Art in particular.
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Wall reproduction of Picasso's painting "Guernica" exhibited at the Reina Sofía Museum in Paris.
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Gernikako Arbola is an oak tree in the Basque city of Gernika.
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The painting shows the horrors of war through the interpretation of the symbols.
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Nabarniz is nestled within the Urdaibai Biosphere Reserve, offering diverse natural landscapes. You can explore indigenous forests, green meadows, and high valleys. Key natural features include Mount Iluntzar, which provides breathtaking panoramic views of the Urdaibai estuary, and the picturesque Oma Brook. Don't miss the unique Oma Forest, an open-air gallery where trees are painted with artistic installations.
Yes, Nabarniz is rich in history. You can visit the ancient Ondoro Sepulchre Cave, with remains dating back to the Neolithic period. The Church of Santa María de Gorritiz-Gorostizaga in Elexalde is a beautiful example of Basque Neo-classical architecture. Other significant historical sites include the Monastery of Santa María de Zenarruza, a National Monument and an important stop on the Way of St. James, and the 16th-century Artzubi Bridge, also part of the Camino de Santiago itinerary.
The area around Nabarniz is ideal for outdoor enthusiasts. You can enjoy various activities such as hiking, cycling, and mountain biking. For hiking, popular routes include loops around Navárniz Village to Iluntzar Summit, offering panoramic views, and the Iluntzar Summit to Potmulat Summit loop. You can find more details on hiking trails around Nabarniz, cycling routes, and MTB trails.
Absolutely. The Oma Forest, with its unique painted trees, is a fantastic and engaging experience for families. The Monastery of Santa María de Zenarruza is also considered family-friendly, offering a peaceful and pretty walk. Additionally, the Guernica Mural in Gernika is an accessible and educational site for all ages.
For stunning views, head to Mount Iluntzar, which is the highest point in the region and offers expansive vistas of the Urdaibai estuary and the Oka River valley. The Santiago Hermitage in the Lekerika neighborhood also provides magnificent views of Mount Oiz. The Artzubi Bridge area also offers scenic viewpoints.
Hiking trails around Nabarniz vary in difficulty. For example, the 'Navárniz Village – Illuntzar Summit (726 m) loop from Nabarniz' and the 'Illuntzar Summit (726 m) – Potmulat Summit loop from Nabarniz' are both rated as moderate. More challenging options, such as the 'Bedartzaundi (699 m) – Illuntzar Summit (726 m) loop from Aulesti', are also available for experienced hikers. You can explore more options on the hiking guide for Nabarniz.
While Nabarniz can be visited year-round, the spring and autumn months generally offer the most pleasant weather for outdoor activities like hiking and cycling. The municipality also celebrates its main patron saint festival of Andra Mari on September 8th, which features traditional stone-dragging horse competitions and offers a unique cultural experience.
Yes, the Guernica Mural in Gernika is noted as being wheelchair accessible, allowing visitors to experience this significant historical and artistic reproduction.
Beyond the well-known sites, Nabarniz has several other historical landmarks. The Castro de Marueleza, an ancient defensive fortress built by Celts around the 6th century BC, offers insights into the region's early inhabitants. The Goikolea Mill, operational until recently, not only milled grain but also generated electricity for the town. Additionally, various hermitages like San Cristobal, San Miguel, and San Gregorio are scattered throughout the distinct neighborhoods, each with its own history.
Visitors frequently praise the blend of natural beauty and historical significance. The Monastery of Santa María de Zenarruza is appreciated for its peaceful atmosphere and historical architecture. The Artzubi Bridge is often highlighted as a beautiful, well-preserved Romanesque structure blending seamlessly with its forest surroundings. The Oma Forest is celebrated for its unique artistic expression and the immersive experience it offers.
When visiting the Oma Forest, vehicles must be parked next to the interpretation center of the Santimamiñe caves. From there, you can access the forest by walking along a designated track.
Nabarniz maintains a strong rural character with its six distinct neighborhoods, each developed around its own hermitage. A unique cultural experience is the annual patron saint festival of Andra Mari on September 8th, which includes traditional stone-dragging horse competitions, showcasing local customs and heritage.


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