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Alonsotegi

Top 8 Lakes around Alonsotegi

Best lakes around Alonsotegi offer opportunities to explore the region's natural features and mountainous landscapes. While large natural lakes are not within Alonsotegi's immediate municipal boundaries, the area provides access to significant water bodies. The Nocedal Reservoir, accessible via Alonsotegi hiking trails, is a notable man-made lake nestled amidst forests. This region is characterized by its serene environment, suitable for outdoor activities.

Best lakes around Alonsotegi

  • The most popular lakes is Pozo Hostión, a lake that is the largest…

Last updated: May 22, 2026

Doña Casilda Iturrizar Park

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The Parque de Doña Casilda is the most famous park in Bilbao. The park is also called parque Casilda Iturrizar, named after the benefactor who donated this park to Bilbao. …

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Pozo Hostión

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The largest of the three wells. Its name comes from a Euskaldun foreman who did not speak Spanish well and who always said "I give hostión" to threaten miners who did not work well.

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Gorostiza Reservoir

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Beautiful circular walk to the Regato.

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Lakes of the Old Iron Mines

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There are sections of trail with possible mud

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Reservoir Riverside Walk

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A panoramic walk along the banks of the reservoir. Mainly in the shade of native trees, just listen to the birds singing.

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Popular around Alonsotegi

An escape from the hustle and bustle of the city – Bilbao's Green Belt (GR 228)

Road Cycling Routes around Alonsotegi

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An escape from the hustle and bustle of the city – Bilbao's Green Belt (GR 228)

Hiking Collection by

Claudia Aguilar González

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oscargynko
August 17, 2025, Lakes of the Old Iron Mines

One of the entrances to the Lakes/Wells.

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The Parque de Doña Casilda is the most famous park in Bilbao. The park is also called parque Casilda Iturrizar, named after the benefactor who donated this park to Bilbao. The park was built between 1912 and 1920 in English romantic style and is an oasis of peace in the city. It is located near the Guggenheim Museum and the Maritime Museum on the Nervión River in the Indautxu district. It is a park to stroll through the 8.52 hectares via the many paths and along the decorative fountain or to watch the birds at the duck pond. Since 1940, the museum of fine arts, the Museo de Bellas Artes de Bilbao, has also been located next to this park.

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A panoramic walk along the banks of the reservoir. Mainly in the shade of native trees, just listen to the birds singing.

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The best lung in the center of Bilbao.

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Small recreational oasis near the Guggenheim Museum.

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Little oasis in the big city if you've been in the Guggenheim Museum long enough.

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A haven of peace and a perfect place to walk

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It is a wonderful place to enjoy the environment

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Frequently Asked Questions

What are the most notable lakes and reservoirs to visit around Alonsotegi?

While Alonsotegi itself doesn't have large natural lakes, the region offers several significant water bodies. Key attractions include the tranquil Nocedal Reservoir, the scenic Gorostiza Reservoir, and the historically rich Lakes of the Old Iron Mines. You can also find Pozo Hostión, the largest of three wells, known for its unique name origin.

Are there family-friendly lakes or walks near Alonsotegi?

Yes, the Gorostiza Reservoir is particularly noted as family-friendly, offering a peaceful place for walking with a flat and short route. The Nocedal Reservoir also features a 'familiar' difficulty linear route, making it suitable for families.

What kind of natural features can I expect to see around the lakes?

The lakes and reservoirs around Alonsotegi are nestled amidst picturesque mountainous landscapes and forests. You'll find tranquil waters, lush greenery, and opportunities to observe local wildlife like cows, horses, and donkeys along the trails, especially around the Nocedal Reservoir.

What outdoor activities can I do near these lakes?

The primary activity is hiking, with many trails leading to and around the reservoirs. For more extensive hiking options, you can explore various routes detailed in the Hiking around Alonsotegi guide. There are also opportunities for road cycling and touring bicycle routes in the wider area, as highlighted in the Road Cycling Routes around Alonsotegi and Cycling around Alonsotegi guides.

Are there specific hiking trails around the Nocedal Reservoir?

Yes, the Nocedal Reservoir is a popular hiking destination. A well-regarded linear route leads to it from the center of La Quadra, approximately 5.3 km round trip, and is considered suitable for groups and families. The trails around the reservoir allow visitors to immerse themselves in the natural environment of the Cadagua valley.

Can I go wild swimming in the lakes near Alonsotegi?

Information regarding permitted water-based activities like swimming in the Nocedal Reservoir or other local water bodies is not readily available. Generally, swimming in reservoirs can be unsafe or prohibited due to factors like steep sides, underwater machinery, and their use as sources of drinking water. It's advisable to exercise caution and respect any local regulations regarding water access.

What is the best time of year to visit the lakes around Alonsotegi?

The region's mountainous landscapes and trails are generally enjoyable during milder seasons. Spring and autumn offer pleasant temperatures for hiking and exploring the natural beauty. While winter walks are possible, be prepared for potentially muddy sections, especially around areas like the Lakes of the Old Iron Mines.

Are the trails around the lakes dog-friendly?

Many trails in the Alonsotegi region, including those leading to and around the Nocedal and Gorostiza Reservoirs, are generally dog-friendly. However, it's always recommended to keep dogs on a leash, especially when encountering local wildlife or other hikers, and to follow local regulations regarding pets in natural areas.

What should I bring for a hike around the lakes?

For hiking around the lakes, it's advisable to bring appropriate footwear, especially if trails might be muddy. Water, snacks, and sun protection are always recommended. Depending on the season, layers of clothing are useful, and a map or GPS device can be helpful for navigation on longer routes.

Are there any cafes or amenities near the lakes?

The lakes and reservoirs themselves are primarily natural areas, so direct amenities like cafes might not be immediately adjacent. However, you can find cafes, pubs, and accommodations in the nearby towns and villages, including Alonsotegi itself, before or after your visit to the lakes.

What makes the Lakes of the Old Iron Mines unique?

The Lakes of the Old Iron Mines are unique as they are a natural monument formed from historical mining activity. They offer a fascinating blend of natural beauty and industrial heritage, providing a distinct environment to explore, though some sections of the trail may be muddy.

Is there parking available for visitors to the lakes?

Parking availability varies by location. For the Nocedal Reservoir, visitors often access it via trails from areas like La Quadra, where parking might be available in the village. For other popular hiking routes leading to lakes, specific parking areas might be designated. It's best to check local information for specific trailheads.

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Still not found your perfect lake around Alonsotegi? Check out the guides of these regions to see even more beautiful places.

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