3.8
(15)
251
riders
13
rides
Mountain biking around Isaba/Izaba is characterized by its location in the Roncal Valley, surrounded by rugged mountains and dense forests. The area features the highest peak in Navarra, the Mesa de los Tres Reyes, and is cradled by the Esca River. This region offers a diverse landscape with challenging mountain passes and extensive forest trails, making it a notable destination for mountain biking in the Pyrenees.
Last updated: July 2, 2026
5.0
(2)
20
riders
52.9km
04:03
1,150m
1,140m
Hard mountain bike ride. Very good fitness required. Suitable for all skill levels.
9
riders
14.5km
01:59
630m
630m
Hard mountain bike ride. Good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.

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4.0
(1)
7
riders
46.0km
04:04
980m
980m
Hard mountain bike ride. Very good fitness required. Suitable for all skill levels.
6
riders
31.6km
03:25
880m
890m
Hard mountain bike ride. Good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.
6
riders
31.3km
03:10
890m
890m
Hard mountain bike ride. Good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.
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Mountain Hikes around Isaba/Izaba
Larra Belagua is a good area for practicing Enduro.
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Hidden among the undergrowth, you climb up a small path next to the bridge, the interior is flooded.
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Without a doubt, the Col de la Piedra de Saint Martin or Pierre Saint-Martin is one of the Top 10 in the whole of the Pyrenees. Without exceeding 2000 metres of altitude, it is a very long pass, with a lot of accumulated gradient (due to the innumerable French slopes, the gradient is 1,450 metres), with very hard slopes and several kilometres above 10%, with wonderful landscapes and panoramic views and with little traffic, except for the slopes crossed by the main road (D132 in France, the NA 137 in Spain). It is a pass with many slopes; in Europe there are few other passes that have as many slopes as this one (col de Turini, Passo delle Erbe, would be comparable in number of slopes approximately). I have only climbed it by 2 slopes: (i) my first time was from Lourdios Ichère, crossing the col de Labays and the col de Soudet. Simply spectacular; (ii) I have subsequently climbed the Spanish side on several occasions, which is unique, and which starts from Belagua and crosses the Belagua cross-country ski resort to reach the mountain pass. It is also very beautiful, with a landscape and views different from the north-east side. If I had to choose one of the two, I liked the north-west side better because it is more remote, harder and in my opinion more authentic. It is also a culturally special mountain pass because the Tribute of the 3 cows takes place on its summit every 13th of July, which is considered the oldest treaty in force in Europe. So... you know... you cannot miss the opportunity to come here and enjoy this wonderful jewel of the Pyrenees!!!!
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A beautiful valley with spectacular views, which can be accessed without difficulty (either from Ansó or from the Roncal valley), where you can breathe peace and tranquility and where you can enjoy a nice swim in the river on the hottest days of the year.
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An ideal place to bathe in a high mountain river. The setting is idyllic and the water will surely refresh you! Don't hesitate to take a dip even if you have to take off your cycling shoes and jersey!
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The Puerto de Laza is a small and beautiful hill that joins the valleys of Roncal (starting from Isaba) and Salazar (starting from Ochagavía) in the Navarrese Pyrenees. Both sides are very similar: a very easy start on a winding road, in perfect condition but without a hard shoulder, passing through small towns and going up the course of the respective rivers Anduña (Salazar valley) and Urbi (Roncal valley); a final stretch of 2 - 3 kms that is harder without being too much so, although there are some slopes above 10%. The Salazar valley side becomes harder when leaving behind the detour to the Larrau port. From here to the port there are 3 km with an average gradient of 7%. On the other hand, the Roncal valley side becomes harder when overcoming a bridge over the river that has been with us since we left Isaba behind. From here it is barely 2 km with an average gradient of 7%. From a landscape perspective, it is a port that I love because you can enjoy the exuberance of the vegetation of the Pyrenees, crossing narrow valleys and only with panoramic views when you reach the top, where there is a viewing point that is worth looking out at. A port that I always recommend for enjoying cycle tourism. I leave you the profile of both sides produced by the website www.cyclingcols.com --> http://www.cyclingcols.com/col/Laza
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A beautiful port that unites the communities of Navarra and Aragón, specifically the towns of Ansó and Isaba. Specifically, it connects the Zuriza valley with the Roncal valley. It is a very affordable port and highly recommended because it allows you to travel through spectacular landscapes, on both sides. The Navarrese slope is shorter but more difficult than the Aragonese slope, which is very steep, except for the final kilometer which is 7 - 8%. What has been said, I reaffirm that it is a beautiful port that must be enjoyed.
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I don't remember having seen the title of "one of the most beautiful towns in Navarra" or similar, but the truth is that, if it doesn't have it, it deserves it.
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The Isaba/Izaba area, nestled in the Roncal Valley, is well-equipped for mountain biking. The Larra Belagua BTT Center offers 18 marked routes totaling 160 kilometers. On komoot, you'll find 14 curated mountain bike trails, ranging from moderate to difficult, allowing you to explore the diverse landscapes.
Mountain bike trails around Isaba/Izaba are generally geared towards riders seeking a challenge. Out of the 14 routes available on komoot, 5 are rated as moderate and 9 are considered difficult. Many trails feature significant elevation gains and challenging climbs, particularly towards mountain passes like the Pierre Saint-Martin or Laza Pass.
Yes, many of the mountain bike trails in Isaba/Izaba are designed as circular routes, offering a complete loop back to your starting point. For example, the Cueva del Ibón – Pierre Saint-Martin Pass loop from Isaba / Izaba is a challenging 32.9-mile (52.9 km) circular route, and the Isaba – Laza Pass (1,129 m) loop from Isaba / Izaba covers 28.6 miles (46.0 km) through beautiful forests.
The best time for mountain biking in Isaba/Izaba is typically from late spring through early autumn (May to October). During these months, the weather is generally more stable, and mountain passes are clear of snow. The region's diverse landscapes, from dense forests to high mountain terrain, offer pleasant riding conditions, though it's always wise to check local weather forecasts before heading out.
While many of the listed trails are moderate to difficult, the Roncal Valley, where Isaba/Izaba is located, offers a range of options. For families, it's recommended to look for shorter, less technical sections or dedicated family routes within the Larra Belagua BTT Center network that might not feature the steep climbs of the longer tours. Always check the specific trail details for elevation and terrain before setting out with children.
Generally, dogs are welcome on many outdoor trails in the Isaba/Izaba region, especially on forest tracks and less technical paths. However, it's crucial to keep your dog under control, preferably on a leash, to protect local wildlife and respect other trail users. Always check for specific signage or local regulations, particularly in protected natural areas, as rules can vary.
The mountain bike trails around Isaba/Izaba offer stunning natural landmarks and viewpoints. You can expect panoramic vistas from high mountain passes like Pierre Saint-Martin Pass or Laza Pass (1,129 m). The region is also home to the highest peak in Navarra, the Mesa de los Tres Reyes, and features dramatic canyons and waterfalls such as the Arrako Waterfall. The Collado de Argibiela also provides magnificent views of valleys and peaks.
Yes, the Isaba/Izaba area blends natural beauty with rich history. You can explore the village of Isaba itself, known for its typical mountain architecture. Trails may pass by ancient Romanesque bridges along the Camino Real, or lead to sites like the Basilica of Our Lady of Idoia or the Hermitage of Belén. The Isaba – Isaba Village loop from Isaba / Izaba is a great way to experience the local architecture and surroundings.
The mountain bike trails in Isaba/Izaba are highly rated by the komoot community, with an average score of 3.9 stars from over 15 reviews. Riders often praise the challenging climbs, rewarding views, and the diverse terrain that includes dense forests and rugged mountain passes. Many appreciate the opportunity to explore the picturesque Roncal Valley.
Isaba/Izaba village itself offers accommodation and dining options, with its traditional stone and wood houses. Additionally, the region has several huts and refuges that can serve as resting points or overnight stays. For example, the Belagua Refuge is a notable option in the area.
The longest mountain bike trail listed on komoot for Isaba/Izaba is the Cueva del Ibón – Pierre Saint-Martin Pass loop from Isaba / Izaba. This challenging route spans 32.9 miles (52.9 km) and typically takes around 4 hours to complete, featuring significant elevation changes and stunning views.
The Esca River, formed by the confluence of the Uztárroz, Belagua, and Belabarce rivers, cradles the Isaba/Izaba area. While specific trails may not be named after the river, many routes in the valley will offer glimpses or run alongside sections of the river and its tributaries, providing scenic waterside views amidst the mountainous terrain.


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