castillo de san felipe of los escullos, spain

ancient andalusia andalusian architectural architecture battlement beach building calcic castillo castle cliff coast defend defending defense dune dunes embrasure embrasures erode eroded erosion escullos europe european felipe foothills fortifications fortress fossilized geological hill hills hilly historic history landscape lime los mediterranean mount mountain mountainous mountains mounts natural nature old oldness outdoor outdoors outside protect protected protecting protection rampart ramparts rough san scape scenic spain spanish sunny tourism touristic typical wall white