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Basque Country

Biscay

Top 7 Castles in Biscay

Castles in Biscay offer a glimpse into the region's medieval past within the Basque Country of Spain. This area features a diverse landscape, from coastal cliffs to deep woodlands, providing varied settings for historical structures. The province is home to several notable castles, each with distinct architectural styles and historical significance. These sites reflect centuries of regional history and cultural development.

Best castles in Biscay

  • The most popular castles is Butrón Castle, a castle known for its fairytale-like appearance…

Last updated: April 29, 2026

Butrón Castle

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In my opinion, together with Gautegiz de Arteaga, they are the two most important castles in Bizkaia

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Arteaga Castle

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The castle of Arteaga, also known as the castle of Empress Eugenia de Montijo, was built in the 19th century in neo-medieval style on the foundations of an 8th century …

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La Galea Fort

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In these areas there are these and other ruins of the war.

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Oxirando Tower

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The Oxirando Tower is located on Calle Oxirando 1 in the town of Sandamendi, belonging to the municipality of Gordexola, on an important medieval road that connects Artziniega with Bilbao. …

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Zamudio

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Zamudio was an important communication hub, since it was at the crossroads of the roads that linked Bilbao with other towns such as Bermeo, Mungia, Plentzia and Larrabezúa.

In the …

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Untzueta Summit (770 m)

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In the remains of an ancient castle, and surrounded by some ugly antennas, is this beautiful 360-degree balcony. A delight for the views.

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Torre de la Quadra

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This 15th-century tower was an important part of local warfare during the Middle Ages.

It is almost 20 meters high and has an inner wall.

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Aranguren Tower

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The Aranguren tower house is located in the municipality of Orozco (Barrio de Aranguren), province of Vizcaya, Basque Country. The tower stands on the banks of the Arnauri River, next …

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ChTh
October 18, 2025, Castillo de Butrón

Definitely a highlight, but unfortunately, the castle was covered in scaffolding when I visited. The castle dates back to the Middle Ages but was later almost completely rebuilt.

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ChTh
October 15, 2025, Fuerte de la Galea

The ruins are located on a cliff above the sea. The fortress was built in the 18th century to defend El Abra Bay. The fortress was built on the site of an old 16th-century watchtower. The tower was rebuilt as a lighthouse in the 1940s. The fortress contained warehouses and barracks for the troops.

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ChTh
October 3, 2025, Torre de la Quadra

This 15th-century tower was an important part of local warfare during the Middle Ages. It is almost 20 meters high and has an inner wall. The tower has three floors: the ground floor served as a stable, storage room, and occasionally a prison, while the first floor housed the main residence. A pointed-arch window bearing the coats of arms of the Salcedo and Zamudio families is a striking feature. The Torre de La Quadra is privately owned.

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Beautiful summit. It's best to reach it the way I came down. The route I took up is quite poor, with lots of undergrowth, and the last stretch isn't suitable for people with vertigo.

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In the remains of an ancient castle, and surrounded by some ugly antennas, is this beautiful 360-degree balcony. A delight for the views.

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Cool castle, graceful as it stands there. By the way, a really beautiful hiking area.

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Amalia Santiago
June 23, 2023, Zamudio

Zamudio was an important communication hub, since it was at the crossroads of the roads that linked Bilbao with other towns such as Bermeo, Mungia, Plentzia and Larrabezúa. In the fourteenth century, the Zamudio lineage was one of the most powerful in Biscay and was in constant conflict with its enemies, the house of Butrón.

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This medieval castle is one of the most beautiful in Biscay. It is located in a beautiful setting, on a hill and on top of some rocks, and is surrounded by a century-old forest.

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Frequently Asked Questions

What is the historical significance of castles in Biscay?

Castles in Biscay, such as Butron Castle and Muñatones Castle, offer a deep dive into the region's medieval past. They were often central to the 'Bando' wars, conflicts between noble families and regional factions during the late Middle Ages, shaping the area's history and cultural development.

Which castles in Biscay are known for unique architecture?

Biscay features castles with distinct architectural styles. Butrón Castle is famous for its fairytale-like Neo-Gothic renovation, inspired by Bavarian models. Arteaga Castle, while having ancient origins, also boasts a striking 19th-century Neo-Gothic design commissioned by Napoleon III.

Can I visit the interior of Butron Castle?

While Butrón Castle is privately owned and currently closed for interior visits, its magnificent exterior and picturesque setting are a major draw. Visitors can enjoy walks around its grounds, which feature exotic plants and palms, and admire its unusual architecture.

What kind of experience does Arteaga Castle offer?

Arteaga Castle operates as a luxury hotel, offering guests the opportunity to stay in elegant rooms and enjoy gastronomic experiences in a charming medieval-neogothic setting. Its location within the Urdaibai Biosphere Reserve also makes it an excellent base for nature lovers, with opportunities for hiking and exploring deep woodlands and the nearby coast.

What can I expect to see at Muñatones Castle?

Muñatones Castle, located in Muskiz, is an imposing fortress with a rich history from the 14th and 15th centuries. It played a crucial role in medieval conflicts. Visitors can explore its structure and, especially during summer months (June to September), its ironworks.

Are there hiking trails near the castles in Biscay?

Yes, there are several hiking opportunities. For example, you can find an easy circular route called 'Isuskitzamendi — circular from the castle of Butrón' near Butrón Castle. For more options, explore the Easy hikes in Biscay guide.

What natural features surround the castles in Biscay?

Butrón Castle is set on a hill surrounded by ancient woods. Arteaga Castle is uniquely situated within the stunning Urdaibai Biosphere Reserve, offering a blend of history and nature with opportunities for exploring deep woodlands and the nearby coast.

What is the best time of year to visit castles in Biscay?

The summer months, particularly June to September, are generally favorable for visiting castles in Biscay, as some sites like Muñatones Castle offer special access to their ironworks during this period. The weather is typically pleasant for outdoor exploration.

Are there family-friendly castles in Biscay?

Yes, several castles in Biscay are considered family-friendly. Butrón Castle and Arteaga Castle are both listed as family-friendly highlights, offering engaging experiences for all ages.

Are there accommodation options near the castles?

Yes, Arteaga Castle itself operates as a hotel, providing a unique stay experience. For other castles like Butron or Muñatones, you can find various accommodation options in the nearby towns and villages such as Gatika and Muskiz.

What other historical sites can I visit in Biscay besides castles?

Beyond traditional castles, Biscay offers other significant historical sites. La Galea Fort is an 18th-century fortress situated on a cliff above the sea, built to defend El Abra Bay. The Oxirando Tower is a late-Gothic medieval tower from the 15th century with an attached Renaissance palace.

How can I get to the castles using public transport?

While specific public transport routes vary by castle, major towns in Biscay like Bilbao offer connections to surrounding areas. It's advisable to check local bus or train schedules for routes to towns near the castles, such as Gatika for Butron Castle, Muskiz for Muñatones Castle, or Gautegiz Arteaga for Arteaga Castle.

Is parking available at the castles?

Parking availability varies by location. For castles like Butrón Castle, visitors can typically find parking in designated areas near the grounds. For Arteaga Castle, as it operates as a hotel, guest parking is usually provided. It's recommended to check specific visitor information for each site.

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