4.7
(19)
692
riders
25
rides
Touring cycling in Larrako Erreserba Naturala/Reserva Natural De Larra features diverse and challenging landscapes, characterized by distinctive karst topography with fractured formations and a wide altitudinal range from 1100m to 2448m. The region includes impressive mountains and significant passes, such as the Col de la Piedra de Saint Martin, known for substantial gradients. Open black pine forests and varied terrain provide a range of cycling experiences.
Last updated: July 12, 2026
4.5
(2)
97
riders
47.2km
03:45
1,370m
1,370m
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
77
riders
67.4km
04:47
1,370m
1,370m
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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5.0
(3)
63
riders
91.1km
07:12
2,630m
2,630m
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
7
riders
34.1km
02:54
890m
890m
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
8
riders
82.8km
06:54
2,710m
2,710m
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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Popular around Larrako Erreserba Naturala/Reserva Natural De Larra
Hiking in Larrako Erreserba Naturala/Reserva Natural De Larra
Running Trails in Larrako Erreserba Naturala/Reserva Natural De Larra
Road Cycling Routes in Larrako Erreserba Naturala/Reserva Natural De Larra
MTB Trails in Larrako Erreserba Naturala/Reserva Natural De Larra

Mountain Hikes in Larrako Erreserba Naturala/Reserva Natural De Larra
beautiful climb starting from the valley of Larrau. Count 21km but the bulk of the elevation gain starts in Saint Engrace
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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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Isaba, also known as Izaba in Basque, is a picturesque village located in the Roncal Valley in the Navarrese Pyrenees, northern Spain. This charming village is known for its rich history dating back to the Middle Ages, when it was a strategic outpost for the Kingdom of Navarre. Isaba offers breathtaking scenery with lush green meadows in spring, colorful autumn leaves and snow-capped mountains in winter.
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I would not recommend right now. They recently did a chip and seal so a LOT of loose gravel. I live in the area and even the road to Osse en Aspe.
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A very irregular climb, with even a descending passage, which gives the opportunity to recover after a few slightly steeper passages. But not really any big difficulty on this pass.
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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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Culminating at 1,540 meters above sea level, the Soudet pass is one of the first to be encountered from the Atlantic coast. The various climbs that lead to it are relatively long and maintain low average percentages despite a few passages around 10%.
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There are nearly 30 touring cycling routes in Larrako Erreserba Naturala/Reserva Natural De Larra, offering a wide range of experiences for cyclists. The komoot community has explored these diverse trails over 700 times.
The region is characterized by its distinctive karst topography, featuring fractured formations and a wide altitudinal range from 1100m to 2448m. You'll encounter impressive mountains, significant passes like the Col de la Pierre de Saint Martin with substantial gradients, and open black pine forests. The terrain is generally challenging, with 22 routes rated as difficult.
While most routes are challenging, there is one easy touring cycling route available. For a moderate option, you can explore one of the 6 routes rated as moderate. Always check the route details on komoot for specific elevation and distance information.
Experienced cyclists will find plenty of demanding options. The Pierre Saint-Martin Pass – Soudet Pass loop from Bitxitoza is a difficult 56.6-mile (91.1 km) trail leading through high mountain terrain. Another challenging option is the Cueva del Ibón – Pierre Saint-Martin Pass loop from La Pierre Saint-Martin, a 41.9-mile (67.4 km) path with significant climbs and panoramic views.
Yes, many of the touring cycling routes in Larrako Erreserba Naturala/Reserva Natural De Larra are circular. For example, the Soudet Pass – Labays Pass loop from La Pierre Saint-Martin is a popular 29.3-mile (47.2 km) trail that navigates through high mountain passes. The GR 12 (Sendero de Euskal Herria) also traverses the reserve, offering options for multi-day circular tours.
The region is rich in natural beauty. You can encounter the distinctive karst topography, open black pine forests, and impressive mountains. Notable landmarks include the Table of the Three Kings (Hiru Erregen Mahaia), Navarre's highest peak, and the Pic d'Arlas. The Pierre Saint-Martin Pass is also a significant feature, known for its challenging ascent and breathtaking vistas.
The touring cycling routes in Larrako Erreserba Naturala/Reserva Natural De Larra are highly rated by the komoot community, with an average score of 4.8 stars from over 15 reviews. Cyclists often praise the challenging mountain passes, the unique karst landscapes, and the rewarding panoramic views.
While many routes are rated as difficult, there is one easy route that might be suitable for families. For a slightly more challenging but still manageable option, consider one of the six moderate routes. Always check the specific route details for elevation gain and distance to ensure it matches your family's cycling ability.
Larrako Erreserba Naturala is a natural reserve with diverse wildlife. While specific regulations for dogs on cycling routes may vary, it's generally advisable to keep dogs on a leash to protect local fauna and flora. Always check local signage and park regulations before heading out with your dog.
The best time to visit for touring cycling is typically during the warmer months, from late spring to early autumn, when mountain passes are clear of snow and weather conditions are more stable. However, always check local weather forecasts, especially for high-altitude areas, as conditions can change rapidly in the Pyrenees.
Access points to the reserve, such as La Pierre Saint-Martin or Bitxitoza, typically offer parking facilities for visitors. Public transport options to this remote Pyrenean region may be limited, so planning your journey by car is often the most convenient way to reach the starting points of the cycling routes.
Given the remote and natural character of Larrako Erreserba Naturala, amenities like cafes are not abundant directly on the routes. It's recommended to carry sufficient water and snacks. You might find services in nearby villages such as Isaba, which is featured in the Cueva del Ibón – Isaba Village loop from Bitxitoza route.
The region is famous for its challenging mountain passes. The Pierre Saint-Martin Pass is a top destination, known for its significant length and gradients often exceeding 10%. Another notable pass is the Soudet Pass, which is part of routes like the Labays Pass – Soudet Pass loop from La Pierre Saint-Martin.


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