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Nabarniz

The best MTB trails around Nabarniz

4.6

(116)

773

riders

102

rides

Mountain biking around Nabarniz, located within the Urdaibai Biosphere Reserve in Bizkaia, Spain, offers diverse natural landscapes and an extensive network of trails. The region features varied terrains, including high valleys, mountains, and lush indigenous forests like the Oma and Basondo Holm Oak Woods. Mount Illuntzar, a prominent peak at over 700 meters, provides significant elevation gains and panoramic views of the reserve. These features create dynamic and engaging experiences for mountain bikers, from forested singletracks to open paths with…

Last updated: November 1, 2026

7

riders

#1.

Centro BTT Urdaibai Ruta 4 – circular desed Mendata

33.2km

03:03

990m

990m

Hard mountain bike ride. Very good fitness required.

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Hard

4

riders

Moderate mountain bike ride. Good fitness required.

Moderate
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Moderate mountain bike ride. Good fitness required.

Moderate

Moderate mountain bike ride. Good fitness required.

Moderate

Moderate mountain bike ride. Good fitness required.

Moderate
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Tips from the Community

Barbara & Andreas 🕊️
September 7, 2026, Basilica of the Assumption of Our Lady of Lekeitio

Today we came to this place again, just like in 2019, exactly on the Monday after the town festival. A note on the door of the basilica informs that it is closed during the entire festival from 1-9 September. Very unfortunate!

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oscargynko
September 5, 2026, Bosque de Oma

A visit to the renovated Oma forest is highly recommended. There are 32 marked points on the ground, which even indicate the direction to look to see the visual combinations between the trees.

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Thomas
December 30, 2024, Bosque de Oma

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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Bastian303
August 6, 2024, Lekeitio

Lonely coastal road for cycling with a beautiful beach and bars for a break.

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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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Basilica of Our Lady of the Assumption of Lekeitio (Gothic style).

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The castle of Arteaga, also known as the castle of Empress Eugenia de Montijo, was built in the 19th century in neo-medieval style on the foundations of an 8th century castle. Its location stands out, in a large flat meadow surrounded by vegetation, unlike the medieval defensive castles built on a hill.

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Frequently Asked Questions

How many mountain bike trails can I explore around Nabarniz?

You can explore over 100 mountain bike trails around Nabarniz. The region offers a diverse network, with 62 moderate routes and 34 difficult routes, ensuring options for various skill levels.

Are there mountain bike trails suitable for beginners in Nabarniz?

While the majority of trails are moderate to difficult, there are 4 easier mountain bike routes available around Nabarniz. These provide a good starting point for less experienced riders to enjoy the beautiful landscapes of the Urdaibai Biosphere Reserve.

What kind of terrain will I encounter on mountain bike trails near Nabarniz?

Mountain biking around Nabarniz features a dynamic mix of terrains. You'll find high valleys, challenging mountain climbs, picturesque brooks, and lush green meadows. The routes often pass through extensive indigenous forests like the Oma and Basondo Holm Oak Woods, offering shaded singletracks and open paths with varied surfaces.

Are there any circular mountain bike routes starting from Nabarniz?

Yes, there are several circular mountain bike routes. A popular moderate option is Centro BTT Urdaibai Ruta 11 – circular desde Navárniz, which covers 12.4 miles (20.0 km) through varied terrain. Another challenging circular route is Centro BTT Urdaibai Ruta 4 – circular desed Mendata, a 20.6 miles (33.2 km) trail with significant elevation changes.

What are some notable natural features or landmarks I can see while mountain biking in the area?

The region is rich in natural beauty and historical sites. You can encounter the majestic Oma Forest, known for its painted trees, or the historic Artzubi Bridge. The trails also offer panoramic views of the Urdaibai Biosphere Reserve, especially from higher elevations like Mount Illuntzar.

What do other mountain bikers say about the trails in Nabarniz?

The mountain bike trails around Nabarniz are highly regarded by the komoot community, with an average rating of 4.8 stars from over 80 reviews. Riders frequently praise the challenging mountainous terrain, the extensive forests, and the panoramic views of the Urdaibai Biosphere Reserve.

Is it possible to access mountain bike trails near Nabarniz using public transport?

Nabarniz is situated within the Urdaibai Biosphere Reserve, and while specific public transport links directly to trailheads can vary, the area is generally accessible. For detailed information on bus routes or train services to nearby towns like Gernika-Lumo or Mundaka, it's advisable to check local transport schedules.

Are there any family-friendly mountain bike trails around Nabarniz?

While many routes feature significant elevation changes, there are 4 easier trails that could be suitable for families with some mountain biking experience. For a more relaxed ride, look for routes with less elevation gain and smoother surfaces, often found in the lower valley areas or around the edges of the forests.

What is the best time of year to go mountain biking in Nabarniz?

The diverse natural landscapes of Nabarniz make it enjoyable for mountain biking across multiple seasons. Spring and autumn generally offer pleasant temperatures and lush scenery. While winter can be ridden, always check local weather forecasts as conditions can vary, especially at higher elevations like Mount Illuntzar.

Are there any specific rules or permits required for mountain biking in the Urdaibai Biosphere Reserve?

As Nabarniz is located within the protected Urdaibai Biosphere Reserve, it's important to respect local regulations to preserve the natural environment. Generally, no specific permits are required for mountain biking on established trails, but riders should always stay on marked paths, avoid disturbing wildlife, and practice Leave No Trace principles. Always check for any updated local guidelines before your ride.

Where can I find parking for mountain biking trails near Nabarniz?

Parking availability can vary depending on the specific trailhead. Many routes, especially those part of the BTT Centers, often have designated parking areas in nearby villages or starting points. For example, routes like Centro BTT Urdaibai Ruta 4 start from Mendata, which typically offers parking options. It's recommended to check the specific route details on komoot for parking information at your chosen starting point.

Can I find cafes or amenities near the mountain bike trails in Nabarniz?

Nabarniz, as the highest village in the Urdaibai Biosphere Reserve, offers some local amenities. You can often find cafes or small eateries in Nabarniz itself or in nearby towns like Gernika-Lumo or Mundaka, which are common access points for the region's trails. It's a good idea to plan your route to pass through these villages if you wish to refuel or rest.

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