Parque Natural de Oyambre Nature · San Vicente de la Barquera, Costa Occidental, Cantabria Protected natural area since 1988 (57 km²) that extends across San Vicente de la Barquera and neighboring municipalities, with marshes, dunes and beaches such as Oyambre. Photo: Luis Fermín TURIEL PEREDO (CC BY-SA 4.0) What to see and do in San Vicente de la Barquera