Ullibarri Urtegiko Adarrak/Colas Del Embalse De Ullíbarri
Ullibarri Urtegiko Adarrak/Colas Del Embalse De Ullíbarri
4.5
(179)
1,341
hikers
113
hikes
Hiking in Ullibarri Urtegiko Adarrak/Colas Del Embalse De Ullíbarri is centered around the Ullíbarri-Gamboa Reservoir, the largest reservoir in the Basque Country. The region features extensive wetlands, recognized as a Natura 2000 site, providing diverse environments for flora and fauna. Trails offer views of the reservoir and surrounding Basque mountains, including Aizkorri and Aratz. The landscape includes provincial parks like Garaio and Landa, along with numerous footbridges enhancing access across the reservoir.
Last updated: May 7, 2026
4.8
(4)
45
hikers
6.97km
01:48
30m
30m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
4.5
(4)
37
hikers
Moderate hike. Good fitness required. Mostly accessible paths. Sure-footedness required.

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4.2
(9)
33
hikers
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
4.3
(8)
24
hikers
5.41km
01:25
40m
40m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
4.3
(3)
26
hikers
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
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Popular around Ullibarri Urtegiko Adarrak/Colas Del Embalse De Ullíbarri
Cycling in Ullibarri Urtegiko Adarrak/Colas Del Embalse De Ullíbarri
MTB Trails in Ullibarri Urtegiko Adarrak/Colas Del Embalse De Ullíbarri
Road Cycling Routes in Ullibarri Urtegiko Adarrak/Colas Del Embalse De Ullíbarri

Gravel biking in Ullibarri Urtegiko Adarrak/Colas Del Embalse De Ullíbarri
Running Trails in Ullibarri Urtegiko Adarrak/Colas Del Embalse De Ullíbarri
Garaio to Gamboa floating walkway
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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
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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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area that cannot be crossed on a bicycle
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Obligatory road bike route to Landa
4
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Beautiful landscape, plants with a large lake
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There are over 110 hiking routes in Ullibarri Urtegiko Adarrak/Colas Del Embalse De Ullíbarri. Approximately 20% are considered easy, about 65% are moderate, and around 15% are difficult, offering options for various fitness levels.
Yes, the area is well-suited for families. Many routes are relatively flat and offer scenic views without significant challenges. A popular family-friendly option is the 13-kilometer route between Garaio and Azua, which can be completed in about 3 hours. Shorter, easy loops like the Garaio Provincial Park – Garaio Footbridge loop from Ullibarri urtegiko adarrak (3.2 miles) are also excellent choices.
Yes, the region is known for its extensive network of circular routes, perfect for exploring the Ullíbarri-Gamboa Reservoir. Options range from shorter loops like the Azua Footbridge – Garaio Footbridge loop from Garaio (4.3 miles) to a complete perimeter route of over 45 kilometers for more experienced hikers and cyclists.
The Ullíbarri-Gamboa Reservoir itself is the central feature, offering impressive views. You'll also encounter extensive wetlands, recognized as a Natura 2000 site, and enjoy views of Basque mountains like Aizkorri and Aratz. The area features several footbridges, including one that leads to the remains of the Azua church, and the reservoir boasts Blue Flag certified beaches like Landa and Garaio.
Absolutely. The region's wetlands are ecologically significant, recognized as a Ramsar site. The Mendixur Ornithological Park, located at the eastern end of the reservoir, is a prime spot for birdwatching. It features adapted paths and observatories where you can observe over 200 species of birds throughout the year.
The area is attractive year-round. Spring and autumn offer pleasant temperatures and vibrant natural colors, ideal for hiking. In summer, the reservoir's beaches provide a refreshing break, while winter can offer a unique, tranquil experience, though some facilities might have reduced hours.
Garaio Provincial Park and Landa Provincial Park serve as excellent starting points for many routes and offer recreational facilities, including parking. These parks are well-equipped to handle visitors accessing the reservoir's trails.
The area is highly rated by the komoot community, with an average score of 4.5 stars. Reviewers often praise the scenic reservoir-side paths, the tranquility of the protected wetlands, and the diverse options available for all ability levels, from easy loops to more challenging ascents with mountain views.
Yes, while many routes are relatively flat, there are options for more challenging ascents. For instance, the Albiturri / Elgeamendi – Hermitage of Santa Marina loop from Marieta-Larrintzar is a moderate 4.8-mile path that includes a significant elevation gain and leads to the historic Hermitage of Santa Marina.
The Ullíbarri-Gamboa Reservoir contains three islands: Zuhatza (known as "rabbit island" and home to a youth hostel), Isla de los Caballos, and Orenin. While some may be accessible or visible from trails, specific hiking access to all islands might vary. Zuhatza is a notable island for exploration.
Yes, for more experienced hikers and cyclists, a complete perimeter route of over 45 kilometers around the Ullíbarri-Gamboa Reservoir offers a greater challenge and a comprehensive exploration of the area's diverse landscapes.
Many trails incorporate the area's footbridges. The Azua Footbridge – Garaio Footbridge loop from Garaio directly connects two key footbridges. Another notable pedestrian and cycle bridge, almost half a kilometer long, connects the shores, providing magnificent views and serving as a junction for various circular routes.


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