Attractions and Places To See around Castrillón - Top 20
Best attractions and places to see around Castrillón, a municipality on the central coast of Asturias, Spain, offer a diverse range of experiences. The region is known for its extensive coastline, featuring numerous beaches and significant dune systems like Playón de Bayas and Dunas de El Espartal. Castrillón also presents a rich cultural and industrial heritage, including historical sites and unique landmarks. These features make it a notable destination for exploring natural landscapes and cultural history.
Best attractions and places to see around Castrillón
- The most popular attractions is Castillo de San Martín, a castle located on the right bank of the river Nalón. Its strategic location on a promontory provides an excellent visual domain over the river's mouth and estuary.
- Another must-see spot is Bridge over the Nalón River, a bridge crossing the longest river in Asturias. From here, visitors can observe the surrounding area where the river forms the Pravia estuary.
- Visitors also love Selgas Palace and the Jesús Nazareno Church‑Pantheon, a neoclassical palace from the 19th century with a large collection of art and furniture. It includes the Jesús Nazareno Church-Pantheon, a 17th-century church converted into a pantheon for the Selgas-Fagalde family.
- Castrillón is known for its historical sites, natural features, and religious buildings. Visitors can explore a variety of attractions, from ancient castles and industrial heritage sites to beautiful beaches and river views.
- The attractions around Castrillón are appreciated by the komoot community, with more than 120 upvotes and 50 photos shared by users.
Last updated: June 22, 2026
Castillo de San Martín
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The current castle was built by Alfonso III on the remains of a previous settlement, in order to protect the coast and the estuary from Norman incursions.
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Selgas Palace and the Jesús Nazareno Church‑Pantheon
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The Jesús Nazareno Church-Pantheon is a 17th century church that was converted into a pantheon by the Selgas-Fagalde family. The pantheon contains the tombs of family members. The interior of the church is decorated with beautiful frescoes and religious art.
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Cudillero
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Cudillero Tunnel
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Quinta de Selgas
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Tips from the Community
The Cudillero Tunnel (Túnel de Cudillero or Río Piñera Tunnel) is a fascinating, historic pedestrian tunnel from the late 19th century. It runs for about 300 meters through the mountain and connects the picturesque fishing harbor directly with the upper part of the village.
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The small fishing village of Cudillero on the coast of Asturias, west of Avilés, is one of the most beautiful coastal towns on the Spanish north coast. Colorful houses climb the green hills, while fishing boats bob in the blue sea below. Sights in Cudillero include the picturesque old town, the harbor district, and the many viewpoints.
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Nicely done, unfortunately it was closed due to heavy rain
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It is a beautiful palace and garden complex in Asturias, Spain, built by two wealthy brothers who loved art and culture. The palace has an impressive collection of paintings, carpets, furniture and other precious objects. The gardens are an example of European landscape art, with different styles and elements. It is also called the Versailles of Asturias because it is so beautiful and grand
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Problem. You can not visit.
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Rolling along the Nalón River we find beautiful views of the most important river mouth in the region. The castle was built by Alfonso III to have good control of the coast and the estuary.
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Frequently Asked Questions
What kind of natural landscapes can I explore in Castrillón?
Castrillón is celebrated for its stunning coastline, featuring numerous beaches and significant dune systems. You can visit Playón de Bayas, the longest sandy beach in Asturias with an important dune system, or explore the extensive Dunas de El Espartal. The Isla de la Deva, the largest island on the Asturian coast, is also a protected natural area. For birdwatching and hiking, the Ria de Avilés Natural Reserve offers great opportunities.
Are there any historical sites or castles to visit in Castrillón?
Yes, Castrillón boasts a rich historical heritage. You can explore the Castillo de San Martín, a historically significant castle located on the right bank of the Nalón river, offering excellent views. Another notable site is the Castillo de Gauzón on the Peñón de Raíces, famous as the place where the 'Cruz de la Victoria' was forged.
What cultural attractions are available in the area?
Castrillón offers several cultural highlights. The Mina de Arnao is a symbolic mining heritage complex, recognized as the first documented mineral coal mine on the Iberian Peninsula and Europe's only underwater mine. You can also visit the Museo de Anclas Philippe Cousteau in La Peñona de Salinas, a tribute to Philippe Cousteau.
Are there any family-friendly attractions around Castrillón?
Many attractions in Castrillón are suitable for families. The Castillo de San Martín and the Bridge over the Nalón River are great for exploring with children. Additionally, the Quinta de Selgas, with its beautiful gardens and art collection, is also listed as family-friendly, though it's important to note its limited summer opening hours.
What kind of outdoor activities can I do near these attractions?
Castrillón is excellent for outdoor enthusiasts. You can find numerous routes for various activities. For hiking, consider the Coastal Path from Playa del Puerto to Arnao and the Anchor Museum. If you enjoy running, the Playa de El Espartal to Playa de El Puerto via the Senda Norte is a popular choice. Road cycling routes like the Niemeyer Center – San Juan de Nieva Lighthouse loop are also available.
Where can I see impressive architecture or religious buildings?
You can visit the Selgas Palace and the Jesús Nazareno Church‑Pantheon, a neoclassical palace with a 17th-century church converted into a family pantheon. The Church of St Thomas of Canterbury in Avilés, often called the 'Cathedral of Avilés,' is another significant religious and architectural landmark.
Are there good viewpoints to enjoy the scenery in Castrillón?
Yes, Castrillón offers several spots for scenic views. The Castillo de San Martín provides an excellent visual domain over the Nalón river's mouth and estuary. Additionally, the Bridge over the Nalón River offers a beautiful perspective of the surrounding area where the river forms the Pravia estuary.
What are some unique historical or industrial heritage sites in Castrillón?
The Mina de Arnao stands out as a unique industrial heritage site. It was the first documented mineral coal mine on the Iberian Peninsula and Europe's only underwater mine, with its headframe and restored underground galleries showcasing Asturias' industrial past. The area also features exceptional fossil sites.
What do visitors particularly enjoy about the attractions in Castrillón?
Visitors appreciate the diverse experiences Castrillón offers. They enjoy the historical significance and strategic views from sites like Castillo de San Martín, and the artistic and architectural beauty of places like Selgas Palace. The natural beauty of the coastline and the opportunities for outdoor activities are also highly valued.
Can I find places for water sports in Castrillón?
Absolutely. Many of Castrillón's beaches are popular for water sports. Beaches such as Salinas, San Juan de Nieva, Arnao, and Santa María del Mar are ideal for surfing, longboarding, bodyboarding, and windsurfing. Salinas beach even hosts the annual Salinas International Longboard Festival.
Are there any hidden gems or less-known places to discover in Castrillón?
Beyond the main attractions, Castrillón offers charming ethnographic sites. Villages like Teboyas and Peñarrey provide insights into the region's traditional architecture and heritage, offering a glimpse into local life away from the more frequented spots.
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