Playa de Otur, Protected beach in Valdés, Spain

Playa de Otur is a 600-metre-long beach in Valdés, Asturias, with dark, medium-grained sand and rocky patches, averaging 80 metres wide. Its western end is called Las Barqueras and its eastern end Castro, after the nearby Roman-era Castro de Castiello. Two streams flank the beach, which lies within the Paisaje Protegido de la Costa Occidental de Asturias.

The eastern end of the beach is called Castro because the Roman-era Castro de Castiello stands nearby, and the western end, Las Barqueras, holds an old mill. The beach lies beside the villages of Otur and Canedo, six kilometres from Luarca, within the Paisaje Protegido de la Costa Occidental de Asturias. Its dune area is described as heavily degraded.

The beach's two ends carry local names: the western stretch is Las Barqueras and the eastern one Castro, after the Roman-era Castiello de la Castiello hillfort nearby. The eastern end also holds a small 30-metre sandy inlet called Cala del Cura, while an old mill stands at the western end. The beach is flanked by two streams.

The beach lies about 500 m on foot from the nearest parking, with vehicle access under 500 m, and is signposted from the roads around Luarca. Two streams flank the sand, and the dunes behind it are badly degraded, so walking routes tend to follow the beach itself. The eastern end holds the small 30 m cove called Cala del Cura; the western end, Las Barqueras, has an old mill. A section is used for naturism.

The eastern end of the beach is separated by a small 30-metre sandy inlet known as Cala del Cura, while the western end, Las Barqueras, holds the remains of an old mill. The eastern zone takes its name, Castro, from the Roman-era Castiello de la época castro that stands nearby.