Castle of o Cardeal Monument · Corcubión, Fisterra, A Coruña A coastal battery begun in 1741 at the Punta de Pión and completed by the engineers Francisco Llovet and Carlos Lemaur; armed with twelve cannon and a garrison of 96 men, it defended the mouth of the ría together with the Castelo do Príncipe. Photo: Estevoaei (CC BY-SA 4.0) What to see and do in Corcubión