Aizkorri-Aratz parke naturala/Parque Natural de Aizkorri-Aratz
Aizkorri-Aratz parke naturala/Parque Natural de Aizkorri-Aratz
4.6
(29)
388
riders
20
rides
Gravel biking around Aizkorri-Aratz parke naturala/Parque Natural de Aizkorri-Aratz traverses a diverse landscape characterized by the highest massif in the Basque Country. The region features prominent limestone mountains, karst topography, and extensive beech woods. Riders encounter both sharp limestone ridges and more undulating siliceous mountain passes, providing a dynamic environment for exploration. The park's network of paths includes unpaved segments, suitable for gravel biking.
Last updated: July 2, 2026
4.5
(16)
96
riders
36.1km
02:25
170m
170m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5.0
(5)
96
riders
40.6km
02:28
160m
160m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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5.0
(1)
6
riders
41.2km
03:08
890m
880m
Hard gravel ride. Very good fitness required. You may need to push your bike for some segments of this route.
4.0
(1)
87
riders
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
14
riders
49.0km
03:09
570m
570m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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Hiking around Aizkorri-Aratz parke naturala/Parque Natural de Aizkorri-Aratz
MTB Trails around Aizkorri-Aratz parke naturala/Parque Natural de Aizkorri-Aratz
Cycling around Aizkorri-Aratz parke naturala/Parque Natural de Aizkorri-Aratz
Running Trails around Aizkorri-Aratz parke naturala/Parque Natural de Aizkorri-Aratz
The Ormaiztegi Viaduct (inaugurated on August 15, 1864) is the town's most emblematic symbol. Designed by engineer Alexander Lavalley, a predecessor of Gustave Eiffel, it stands in a beautiful landscape overlooking the Eztanda River. It is the most important structure on the Madrid-Paris railway line, spanning 289 meters in length and 34 meters in height. Its 18,000 tons are supported by four pillars. The double track was installed in 1912 and electrified in 1928. It is currently disused and forms part of the Basque Country's cultural heritage.
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Beautiful views. Be careful if you're fishing on the bridge; it's very narrow and you could fall hard.
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A long, non-floating bridge that spans the swamp from side to side. During the day, many fishermen
2
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Good area for walking or cycling
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Within the path surrounding the Ullibarri Ganboa reservoir, there is this very peculiar footbridge that crosses the water, offering a totally different view from any other you can see surrounding a reservoir...
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There are over 25 gravel bike trails documented in Aizkorri-Aratz Natural Park on komoot. These routes cater to various skill levels, with a good mix of moderate and challenging options.
While many routes in Aizkorri-Aratz Natural Park feature challenging mountainous terrain, some sections of the Ullibarri-Gamboa Reservoir loop from Landa offer more gentle gradients suitable for families with some biking experience. The park's greenways and reservoir areas generally provide a less strenuous ride compared to the higher mountain paths.
Summer is generally considered an ideal time for gravel biking in Aizkorri-Aratz Natural Park to avoid muddy conditions, especially on the northern slopes. Spring and early autumn can also be excellent, offering pleasant temperatures and vibrant scenery, but be prepared for potentially wetter conditions.
Yes, many of the gravel routes in Aizkorri-Aratz Natural Park are designed as loops. For example, the Aitzorrotz Hermitage – Urkulu Dam loop from Izurieta offers a moderate circular ride, allowing you to start and finish at the same point.
The park's gravel trails wind through diverse landscapes, including extensive beech woods, oak forests, and mountain meadows. You'll encounter dramatic limestone karst formations, such as sinkholes and ravines. Keep an eye out for traditional shepherds' huts and prehistoric dolmens in areas like the Campas de Urbía. You might also spot diverse wildlife, including griffon vultures and wild cats.
Absolutely. The park is rich in history. You can explore routes that pass near the mythical San Adrián Tunnel, a medieval roadway used by pilgrims on the Camino de Santiago. The spectacular Sanctuary of Arantzazu, perched above a deep gorge, is also a significant entry point to the park and worth visiting.
For experienced riders seeking a challenge, the park offers several difficult routes. The Ormaiztegi Viaduct – Aztiria loop from Olaberri is a demanding option with significant elevation changes, providing a rigorous workout and rewarding views of the mountainous terrain.
Parking is generally available at common starting points for routes, such as near the Landa Recreation Area or in villages like Leintz-Gatzaga and Izurieta. Visitor centers in Arantzazu, Araia, and Zegama (Aizkorriko Ataria) also serve as good access points and often have parking facilities.
The gravel biking routes in Aizkorri-Aratz Natural Park are highly rated by the komoot community, with an average score of 4.8 out of 5 stars from over 20 reviews. Riders often praise the diverse terrain, the stunning natural beauty of the Basque Country's highest massif, and the well-maintained network of paths that offer both scenic beauty and a good challenge.
Yes, many routes within Aizkorri-Aratz Natural Park provide magnificent views of the highest massif in the Basque Country, including prominent peaks like Aitxuri and Aizkorri. For direct views of these summits, consider routes that traverse higher elevations or pass through areas like the Urbia depression. You can also explore specific highlights like the Aizkorri Summit (1,523 m) or Aratz Summit (1,445 m).
Certainly. The park features routes that offer scenic views of water bodies. The Garaio Footbridge – Azua Footbridge loop from Landa, for instance, leads through varied terrain with notable water features, providing a refreshing element to your ride.


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