Playa de La Concha, Protected beach in Soto de Luiña and Cudillero, Spain.

Playa de La Concha is a protected beach extending roughly 750 meters, displaying golden sand at low tide and large rounded pebbles at high tide. Steep cliffs form a natural border around this coastal inlet.

The beach lies in the council of Cudillero, in the parish of San Martín de Luiña, near Lamuño and Artedo. It forms part of the Costa Occidental de Asturias and is catalogued as a protected landscape, as well as a ZEPA and LIC site. The Turbera de Las Dueñas, declared a Natural Monument, lies near the coastal path towards Cudillero.

The beach takes its name from its shell-like curve, and the Uncín River enters the sea at its edge. In a small cove on the sand there is a controlled cultivation of edible Palmaria seaweed. A campsite stands nearby, and the Turbera de Las Dueñas, declared a Natural Monument, lies on the coastal route toward Cudillero.

Access is on foot or by car right up to the beach, via a signposted turn-off on the N-634 near Lamuño; the route runs about 1,500 m to the mouth of the Uncín. The sand lies under water at high tide, so time a visit to the low tide. A lifeguard service operates in summer.

In a cove on the beach itself, edible seaweed of the genus Palmaria is cultivated under controlled conditions. The Uncín River, which gives the beach its name, empties into the sand here after about 1,500 m from the N-634 road near Lamuño.