3.9
(63)
6,288
riders
12
rides
Road cycling routes around Aretxabaleta navigate a mountainous landscape in the Basque Country, characterized by diverse natural features. The region is situated on the banks of the River Deba, offering varied terrain for road cyclists. Key landmarks include the Urkulu Reservoir and proximity to the Aizkorri-Aratz Natural Park, which features peaks up to 1,551 meters. These features contribute to a range of road bike difficulty and elevation profiles.
Last updated: May 15, 2026
5.0
(3)
528
riders
95.5km
04:10
880m
880m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
4.0
(1)
344
riders
119km
05:40
1,560m
1,560m
Hard road ride. Very good fitness required. Some segments of this route may be unpaved and difficult to ride.

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196
riders
38.3km
01:47
300m
300m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
46
riders
56.1km
02:56
950m
950m
Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.
33
riders
140km
06:42
1,810m
1,810m
Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.
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floral offering on the first Sunday of March
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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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A visit to the Virgin Mary is a must at least once a year. Puerto Arlaban
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pedestrian walkways of the marsh nearby
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The first town in Bizkaia. Spectacular setting, surrounded by ports
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The first 2 km are very tough. Some slopes reach up to 15%. The remaining 11 km until Legutio are very manageable. Light traffic, good asphalt, beautiful scenery.
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Before reaching Iturrieta, a detour to the Hermitage of Santa Teodosia is highly recommended.
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Good area for walking or cycling
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Aretxabaleta offers a diverse range of road cycling terrain, from relatively flat sections along the River Deba to challenging mountainous climbs. You'll find routes with varying elevation gains, catering to different fitness levels. The region is characterized by its stunning mountainous landscapes and proximity to natural parks, ensuring a scenic and engaging ride.
Yes, Aretxabaleta provides options for less experienced cyclists. An excellent choice is the Greenway – Plaza de los Fueros loop from Aretxabaleta, which is an easy 20.5-mile (33.0 km) trail. This route often follows greenways, offering a more relaxed cycling experience.
For those seeking a challenge, Aretxabaleta is well-known for its demanding climbs. The Opakua Pass – Ullibarri-Gamboa Reservoir loop from Aretxabaleta is a difficult 73.7-mile (118.6 km) route that includes the challenging Opakua Pass. Additionally, the Untzella climb, starting directly from Aretxabaleta, is famous for its steep gradients, having been featured in the Tour of the Basque Country.
Road cycling routes in Aretxabaleta often pass by significant natural features. You can expect views of the picturesque Urkulu Reservoir and the River Deba. Many routes also offer glimpses of the Aizkorri-Aratz Natural Park, with its impressive peaks. Specific highlights include the Barrendiola Reservoir and the Ullíbarri-Gamboa Reservoir Trail.
Yes, Aretxabaleta features several excellent circular road cycling routes. Examples include the popular Ullibarri-Gamboa Reservoir – View of Eskoriatza loop from Aretxabaleta and the challenging Opakua Pass – Ullibarri-Gamboa Reservoir loop from Aretxabaleta. These loops allow you to start and finish in the same location, making logistics easier.
The Basque Country generally offers pleasant cycling conditions for much of the year. Spring and autumn are often ideal, with milder temperatures and lush landscapes. Summer can also be good, though some climbs might be more strenuous in warmer weather. Winter can bring cooler temperatures and a higher chance of rain, but many paved routes remain accessible.
The road cycling experience in Aretxabaleta is highly rated by the komoot community, with an average score of 3.8 stars from over 50 reviews. Cyclists often praise the region's stunning mountainous landscapes, the variety of routes catering to different abilities, and the generally good condition of the roads, especially on challenging climbs like the Untzella, which often have minimal traffic.
For families looking for a relaxed ride, the Greenway – Plaza de los Fueros loop from Aretxabaleta is a great option. Greenways typically offer flatter, traffic-free paths, making them suitable for cyclists of all ages and skill levels.
There are over 10 road cycling routes available around Aretxabaleta, offering a wide range of distances and difficulty levels to explore the region's diverse landscapes.
Yes, the region around Aretxabaleta is home to several caves that can be explored. Notable examples include the impressive Eye of Aitzulo and the Cueva de Otxarreta. Some routes might pass close to these natural wonders, offering an interesting detour.
Beyond the main routes, you can find other scenic options like the Panoramic view of Eskoriatza – Urrunaga Reservoir loop from Arrasate / Mondragón. This moderate 45.1-km route provides beautiful vistas and circles the Urrunaga Reservoir, offering a different perspective of the area's natural beauty.


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