Castro Marina or Castromarina is a district of Castro, and more precisely of that part at the lower level that develops from sea level (port area) to the upper coastal road. More often erroneously indicated as part of the municipality of Castro in the province of Lecce, or marine, it is in fact closely related to the urban fabric of Castro with which hit forms a unique and organic urban agglomeration. It has just over 600 inhabitants and is situated in a point on the coast of Salento rich in natural caves, such as the Zinzulusa cave.