4.8
(33)
363
riders
40
rides
Mountain bike trails around Guernica y Luno traverse a diverse landscape within Spain's Basque Country, notably the Urdaibai Biosphere Reserve. This UNESCO-designated area features dynamic marsh systems, vineyards, and riverbanks. The region also includes the Oiz mountain, offering varied elevations, and the unique Oma Forest with its painted trees. The terrain provides a mix of long climbs, panoramic viewpoints, and descents suitable for mountain biking.
Last updated: August 25, 2026
5.0
(1)
14
riders
46.8km
04:32
1,590m
1,590m
Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary.
4.8
(5)
53
riders
41.5km
03:52
1,210m
1,210m
Hard mountain bike ride. Very good fitness required. Suitable for all skill levels.

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5.0
(1)
29
riders
43.8km
03:49
1,070m
1,070m
Hard mountain bike ride. Very good fitness required. Suitable for all skill levels.
4.0
(4)
25
riders
26.1km
02:11
700m
700m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
18
riders
42.3km
03:35
1,050m
1,050m
Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary.
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Popular around Guernica Y Luno
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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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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This Roman necropolis is located very close to the highest point of the Sollube massif. Here they received the ashes of the cremated deceased from a nearby town, between the 1st and 3rd centuries AD. c.
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At 684 meters high, this is the highest peak of the massif that bears its name. It is located on the left bank of the estuary. During the Civil War, the so-called Battle of Sollube took place on its slopes for eight days.
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A small chapel that marks the peak of Bizkargi at 557 meters. Beautiful views on a clear day.
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This bridge is an incredible find in the middle of the forest. It is covered with ivy and in summer it is so green that it is hardly visible. If you go down next to the river you can take some great photos with the water and the bridge. For many years this bridge has had to survive numerous floods. It's amazing that he's still here.
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This little section of the trail has it all. There is a stream crossing, there is a nice climb or descent depending on the direction, there are great views, there are wide parts and narrow sections. It is a very nice trail for mountain biking.
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There are over 40 mountain bike trails around Guernica y Luno, offering a wide range of options for different skill levels. These routes traverse the diverse landscapes of the Urdaibai Biosphere Reserve.
Yes, Guernica y Luno offers a few easier mountain bike routes. While many trails are moderate to difficult, there are at least 2 routes classified as easy, providing a good starting point for less experienced riders.
The terrain around Guernica y Luno is varied, ranging from long tracks climbing through vineyards to paths offering panoramic views and descents along riverbanks. You'll encounter the dynamic marsh systems of the Urdaibai Biosphere Reserve and forested areas, including the unique Oma Forest.
Absolutely. For experienced riders seeking a challenge, there are 15 difficult routes available. One such route is the Centro BTT Urdaibai Ruta 8 – Reserva de la Biosfera de Urdaibai, a 46.8 km trail with significant elevation gain (1,590m) within the Urdaibai Biosphere Reserve.
Many trails offer stunning views, particularly within the Urdaibai Biosphere Reserve. You can find wonderful views from spots like the hermitage of San Cristóbal. The Views over the Urdaibai marsh are also a highlight. Additionally, the unique Oma Forest, with its painted trees, offers a culturally rich experience amidst nature.
Yes, many of the mountain bike routes around Guernica y Luno are designed as loops. For example, the Sollube Summit – Summit of Sollube loop from Gernika is a moderate 36.5 km path that takes you to the Sollube Summit and back, offering panoramic views.
You can encounter several historical and cultural sites. The Artzubi Bridge – Ajangiz Village and Church loop from Gernika takes you through rural villages and past historical sites. The Guernica Mural in Gernika and the Old Tree of Gernika (Gernikako Arbola) are also notable landmarks in the town itself.
The mountain bike routes in Guernica y Luno are highly rated by the komoot community, with an average score of 4.8 stars from over 20 reviews. Many riders praise the diverse terrain, from the marsh systems to the vineyards and forested river valleys, and the variety of options for all skill levels.
Certainly. A popular moderate option is the Arrola Oppidum loop from Institutoa, which spans 26.1 km with 700m of elevation gain. This route provides a good workout while allowing you to enjoy the regional landscapes.
The diverse landscapes of Guernica y Luno, particularly within the Urdaibai Biosphere Reserve, are enjoyable throughout much of the year. Spring and autumn generally offer pleasant temperatures and vibrant scenery, making them ideal for mountain biking. Summer can also be good, especially in the mornings or late afternoons to avoid the midday heat.
While specific parking details vary by trailhead, Guernica y Luno, as a town, generally offers parking options. Many routes start from or pass through accessible areas, and you can often find parking in or near the town center or at designated points closer to the trail entrances.
Guernica y Luno is well-connected by public transport within the Basque Country, including train and bus services. This makes it feasible to reach the town and access many of the surrounding trails without a car, though specific trailhead access might require a short ride or walk from public transport stops.


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