4.4
(74)
1,763
riders
96
rides
Touring cycling routes around San Millán / Donemiliaga traverse a diverse landscape within Spain's Basque Country. The region is characterized by the mountainous terrain of the Aizkorri-Aratz Natural Park, featuring prominent peaks like Buruamendi and Zukuz, and the Sierra de Entzia to the south. The Zadorra River originates within the municipality, creating lush riverine valleys that offer flatter cycling options. This blend of mountain ranges and river systems provides varied terrain for touring cyclists.
Last updated: July 3, 2026
4.0
(1)
5
riders
45.1km
02:42
270m
270m
Moderate bike ride. Good fitness required. Some segments of this route may be unpaved and difficult to ride.
1
riders
23.1km
01:36
140m
150m
Easy bike ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.

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33
riders
49.9km
04:02
490m
500m
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
22
riders
54.4km
04:01
500m
500m
Hard bike ride. Very good fitness required. You may need to push your bike for some segments of this route.
20
riders
38.4km
03:13
410m
410m
Moderate bike ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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Mountain Hikes around San Millán / Donemiliaga
area that cannot be crossed on a bicycle
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Panoramic view of the Valle de Allín.
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I went in July 2023. This cave is completely closed. There are signs from the Basque government saying DO NOT ENTER (and explaining the consequences and the work they're doing) and plastic tape blocking the entrance. There are lots of constructions tools around too. Don't expect to get in unless you're willing to destroy the small stone wall and all the tape blocking the entrance.
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The Galarreta church is an old temple that has suffered the loss of part of its structure over the years. In the middle of the 20th century, it suffered significant damage and in 2014 its tower collapsed. However, the church has been rebuilt, revealing a double portal, Romanesque and Renaissance.
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The Garaio Footbridge is a structure with a length of 400 meters and a height of 30 meters, which crosses the Ullíbarri-Gambo Reservoir and offers impressive views of the reservoir and the surroundings.
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Picturesque medieval town located in the province of Álava. Its cobbled streets, churches and ancient walls is like going back in time. Highly recommend taking a bike ride through its streets to immerse yourself in the history and culture of the region. It is also an incredible place to enjoy its delicious cuisine.
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Spectacular megalithic monument of great historical and archaeological value. The dolmen has been studied to understand the life and culture of the people who built it thousands of years ago. The space has an information panel where you can learn more about its history.
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San Millán / Donemiliaga offers a wide selection of touring cycling routes, with nearly 100 options to explore. These routes cater to various skill levels, including 11 easy, 29 moderate, and 59 difficult trails.
The region features a diverse landscape, from the mountainous terrain of the Aizkorri-Aratz Natural Park and the Sierra de Entzia, offering significant elevation changes, to flatter, more serene options along the Zadorra River valley. You'll find a mix of challenging ascents and rewarding descents, as well as tranquil rural roads and greenways.
While touring cycling is possible year-round, spring and autumn generally offer the most pleasant conditions with milder temperatures and vibrant natural scenery. Summer can be warm, especially in the valleys, while winter may bring colder temperatures and potential for snow in higher elevations of the Aizkorri-Aratz Natural Park and Sierra de Entzia.
Yes, there are several easy touring cycling routes perfect for beginners and families. For instance, the Sorginetxe and Aizkomendi Dolmens Loop is an easy 14.4-mile (23.1 km) path that offers a cultural experience amidst rural landscapes without significant elevation challenges.
Absolutely. Experienced touring cyclists will find plenty of challenging routes, particularly in the mountainous areas. The Itaida Menhir – Cueva de Los Cristinos loop from Entziako partzuergoa, for example, is a difficult 34.3-mile (55.2 km) trail leading through the Sierra de Entzia with considerable elevation gain, often completed in about 4 hours.
The routes often pass through or near significant natural features. You might encounter the impressive San Adrián Tunnel, the majestic Aizkorri Summit (1,523 m), or the unique Eye of Aitzulo. The region is also home to several gorges, such as the Fajeta Peña Rasgada.
Yes, the region boasts beautiful waterfalls that can be incorporated into your touring cycling adventures. Notable examples include the Tobería Waterfalls and the Igoroin Gorge Waterfalls, offering picturesque stops along your ride.
San Millán / Donemiliaga is rich in history. You can cycle past prehistoric remains like the well-preserved Sorginetxe and Aizkomendi dolmens. The region also features the historic Monastery of San Bernardo de Barria, dating back to the 12th century, offering cultural enrichment amidst the natural beauty.
Yes, many touring cycling routes in San Millán / Donemiliaga are designed as loops, allowing you to start and end in the same location. A popular example is the Ullibarri-Gamboa Reservoir - Agurain Loop, a 28.0-mile (45.1 km) trail that connects the reservoir area with the town of Agurain.
The touring cycling routes in San Millán / Donemiliaga are highly rated by the komoot community, with an average score of 4.3 stars from over 60 reviews. Reviewers often praise the diverse terrain, the tranquility of the rural roads, and the stunning natural beauty of areas like the Aizkorri-Aratz Natural Park.
While San Millán / Donemiliaga is a rural municipality, it is connected to broader networks. Vitoria-Gasteiz, a nearby city with extensive cycling infrastructure, serves as a hub and may offer public transport options that connect to the region. It's advisable to check local bus schedules for specific villages within San Millán / Donemiliaga.
Given the rural nature of San Millán / Donemiliaga and its 15 small villages, parking is generally available in or near the villages that serve as common starting points for routes. Look for designated parking areas in towns like Agurain-Salvatierra or near popular attractions like the dolmens.
The small villages within San Millán / Donemiliaga and surrounding towns like Agurain-Salvatierra offer local cafes, bars, and restaurants where you can refuel. It's a good idea to plan your route to pass through these villages or carry snacks and water, especially on longer or more remote sections.


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