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Alegría-Dulantzi

Top 16 Lakes around Alegría-Dulantzi

Lakes around Alegría-Dulantzi primarily feature the Ullíbarri-Gamboa Reservoir, the largest reservoir in the Basque Country, which serves as a significant aquatic attraction. This area is characterized by its extensive water body, surrounding recreational parks like Garaio, and diverse natural landscapes. It is a Natura 2000 site, highlighting its ecological importance and offering opportunities for outdoor recreation. The region provides a mix of water sports, hiking, and birdwatching activities.

Best lakes around Alegría-Dulantzi

  • The most popular lakes is Pedestrian and cycle…

Last updated: May 23, 2026

Pedestrian and cycle bridge

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This bridge is part of the circular route to the reservoir and many others that pass through this place. The environment is magnificent to do it both walking and cycling. …

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Azua Footbridge

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This walkway, almost half a kilometer long, allows us to cross from one shore of the Ullíbarri-Gamboa reservoir to the other.

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Greenway without much unevenness (MTB and Gravel)

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Ullíbarri-Gamboa Reservoir Trail

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The route through the Ullíbarri Gamboa reservoir is one of those routes that attract attention. An environment to take away the hiccups, which proposes routes for all types of ages and physical states.

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Laguna de Otazu

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This lagoon looks obviously man-made and has a strange color, but it is actually pretty. It also has a nice trail that goes around it.

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Popular around Alegría-Dulantzi

Road Cycling Routes around Alegría-Dulantzi

Cycling around Alegría-Dulantzi

Hiking around Alegría-Dulantzi

Gravel biking around Alegría-Dulantzi

MTB Trails around Alegría-Dulantzi

Running Trails around Alegría-Dulantzi

Tips from the Community

Antortxa 🚲🌲🌳⛰️🍵
November 2, 2025, Azua Footbridge

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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100% recommended

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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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Irrigation pond in the mountains between Otazu and Mendiola, easy to get to and incredible views.

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Wonderful path along the lake

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I love gravel!! Return to the swamp with hardly any unevenness. Enjoyable output with very beautiful landscapes. All track, flat, ideal terrain both for those who are starting out in this sport and for those who want to "push" and pick up speed on the flat 🚀🚀.

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Pau Arbat
April 21, 2023, Azua Footbridge

This walkway, almost half a kilometer long, allows us to cross from one shore of the Ullíbarri-Gamboa reservoir to the other.

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Frequently Asked Questions

What is the main lake in the Alegría-Dulantzi region?

The primary aquatic destination near Alegría-Dulantzi is the Ullíbarri-Gamboa Reservoir. It is the largest reservoir in the Basque Country and is often referred to as the "inland sea of Euskadi" due to its expansive size and diverse offerings.

What outdoor activities can I do around the Ullíbarri-Gamboa Reservoir?

The Ullíbarri-Gamboa Reservoir offers a wide range of outdoor activities. You can enjoy swimming at its Blue Flag certified beaches, sunbathing, picnicking, hiking, and cycling. It's also ideal for water sports such as rowing, canoeing, windsurfing, and paddleboarding. For specific routes, explore the hiking guide or the gravel biking guide for the area.

Are there family-friendly options around the lakes?

Yes, the Ullíbarri-Gamboa Reservoir is very family-friendly. It features picnic zones, playgrounds, and easy cycling routes. Highlights like the Pedestrian and cycle bridge and the Azua Footbridge are part of routes suitable for all ages. The Irrigation Reservoirs by the Vasco Navarro Greenway also offer family-friendly paths.

Are there good cycling routes around the Ullíbarri-Gamboa Reservoir?

Yes, a 44-kilometer (27-mile) circular greenway encircles the entire Ullíbarri-Gamboa Reservoir, providing excellent opportunities for cycling. Shorter, family-friendly routes, such as the 13-kilometer southern route from Garaio to Azúa, are also available. The Ullíbarri-Gamboa Reservoir Trail is noted for offering smooth walks and rides with scenic views.

Where can I go birdwatching near Alegría-Dulantzi's lakes?

The Mendixur Ornithological Park, located at the eastern end of the Ullíbarri-Gamboa Reservoir, is an excellent birdwatching site. It is a Ramsar wetland and a Natura 2000 site, featuring adapted paths and observatories. It attracts numerous aquatic birds, including the largest colony of imperial heron in the Basque Country and various egrets. The nearby Urrunaga Reservoir also attracts many water birds.

Are there beaches for swimming at the Ullíbarri-Gamboa Reservoir?

Yes, the Ullíbarri-Gamboa Reservoir boasts three Blue Flag certified beaches within the Garaio and Landa Provincial Parks: Landa, Moskurio/Garaio north, and Salurriaga/Garaio south. These beaches offer clean waters and good facilities for bathers.

What are some notable features or landmarks around the Ullíbarri-Gamboa Reservoir?

Beyond its natural beauty, the reservoir features several notable structures. The Pedestrian and cycle bridge is a popular part of the circular route, offering a unique crossing experience. The Azua Footbridge spans almost half a kilometer, connecting different shores. The reservoir also contains islands like Zuhatza, which hosts a youth hostel, and Orenin, a former hamlet now an island.

When is the best time to visit the lakes near Alegría-Dulantzi?

The Ullíbarri-Gamboa Reservoir is enjoyable throughout the year, but the warmer months (late spring to early autumn) are ideal for swimming and water sports. Spring and autumn also offer pleasant temperatures for hiking and cycling, with beautiful natural scenery. Birdwatching is excellent during migration seasons.

Are there other lakes or reservoirs in the vicinity besides Ullíbarri-Gamboa?

While Ullíbarri-Gamboa is the most prominent, the Urrunaga Reservoir is also part of the region's water supply system and is known for attracting numerous water birds, making it another popular spot for birdwatching. Additionally, you can find smaller Irrigation Reservoirs by the Vasco Navarro Greenway and the Laguna de Otazu, which offer unique landscapes and trails.

Is parking available at the lakes?

Yes, the Ullíbarri-Gamboa Reservoir, particularly around the Garaio and Landa Provincial Parks where the Blue Flag beaches are located, offers accessible parking facilities for visitors.

What do visitors enjoy most about the lakes around Alegría-Dulantzi?

Visitors frequently praise the serene natural environment, the extensive opportunities for outdoor activities like cycling and walking, and the beautiful views. The Pedestrian and cycle bridge is often highlighted as a peculiar and magnificent experience, while the Ullíbarri-Gamboa Reservoir Trail is appreciated for its smooth paths and scenic vistas suitable for all ages.

Most popular routes around Alegría-Dulantzi

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