4.4
(112)
1,716
riders
132
rides
Mountain biking around Parçonerie Générale De Guipuscoa-Et-Alava offers diverse terrain within the Aizkorri-Aratz Natural Park. The region is characterized by majestic mountains, extensive beech and oak forests, and varied landscapes including deep valleys and karst formations. Riders can expect a mix of challenging ascents and scenic descents across this rugged natural environment. The area features limestone massifs and high-altitude peaks, providing varied terrain for mountain bikers.
Last updated: July 3, 2026
5.0
(2)
18
riders
44.5km
04:19
1,230m
1,230m
Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary.
5.0
(1)
20
riders
24.8km
02:25
780m
780m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.

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13
riders
30.4km
03:22
1,040m
1,040m
Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary.
16
riders
77.5km
08:39
2,650m
2,650m
Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.
4.8
(4)
14
riders
50.1km
03:46
800m
800m
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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A place to remember, a joy to visit.
4
0
Very nice views...be careful of the cold wind and the fog
0
0
Beautiful place, I recommend doing that route.
2
0
Section from Zalduondo along the Camino de Santiago or medieval from Bayonne to Burgos, very hard due to the climbs if you go with panniers, but spectacular
0
0
San Adrián is a rock located on the northern anticline of the Sierra de Urbasa, dominating the valleys of Burunda and Ergoiena. This 1,113 meter summit belongs to this last valley and is dominated by the hermitage of the saint. It is said that he protects the valley from the storm. It has a spectacular crest over the town of Lizarraga, at 588 metres, at the junction of the Urbasa and Andia mountains, in the port/tunnel of Lizarraga, at 1030 metres. This crest is formed by a set of large calcareous blocks that collapse towards the valley forming a characteristic sawn profile that is easily admired from the zig-zaging road that ascends to the Lizarraga pass.
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Next to the path that leads to San Adrian
0
0
The region offers a wide selection of mountain bike trails, with over 130 routes available on komoot. These range from moderate paths to challenging technical trails, catering to various skill levels.
Yes, while many routes offer a challenge, there are 7 easy mountain bike trails in the area. These typically feature less elevation gain and smoother terrain, perfect for a relaxed ride through the scenic landscapes of the Aizkorri-Aratz Natural Park.
You can expect a diverse and rugged natural environment, characterized by majestic mountains, extensive beech and oak forests, and varied landscapes including deep valleys and karst formations. Trails often feature technical singletracks, roots, and small jumps, providing an exciting experience.
Absolutely. The region is known for its challenging terrain, with 71 difficult mountain bike routes available. For instance, the Burgamendi Summit – Burgamendi loop from Zalduondo is a difficult 44.5 km path offering extensive views from the summit. Another demanding option is the Askiolagaña, 1208 m – San Adrián Tunnel loop from Araia, which includes over 1000 meters of elevation gain.
Yes, many of the mountain bike trails in Parzonería General de Guipúzcoa y Álava are designed as loops, allowing you to start and finish at the same point. A popular example is the Peruaitz Summit – Agineta Forest Trail loop from Araia, a 24.8 km route through dense forest.
The area is highly rated by the komoot community, with an average score of 4.4 stars from over 100 reviews. Reviewers often praise the diverse terrain, the stunning natural beauty of the Aizkorri-Aratz Natural Park, and the well-maintained trails that offer a mix of challenging ascents and scenic descents.
Yes, the region is rich in natural beauty. You might encounter highlights such as the historic San Adrián Tunnel, the impressive Aizkorri Summit (1,523 m), or the unique geological formation of the Eye of Aitzulo. Some routes also pass by beautiful features like the Tobería Waterfalls.
The diverse terrain and green landscapes of Guipúzcoa and Álava make mountain biking enjoyable for much of the year. Spring and autumn generally offer pleasant temperatures and vibrant scenery. While the region is known for its green areas, it's always advisable to check local weather conditions, especially during winter, as higher elevations can experience snow.
Yes, the region has several huts and hostels that can serve as resting points or overnight stays. Examples include the Urbia Inn, the Aizkorri Refuge and Hermitage, and the ARAIA HOSTEL. These spots often provide a chance to refuel and experience local hospitality.
For endurance riders seeking a significant challenge, the region offers extensive routes. The Urbia Plateau – Goromendilona Summit loop from Araia is a particularly long and demanding option, covering over 77 km with more than 2600 meters of elevation gain, making it a true test of stamina.


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