old tower and pebble beach

ancient architectural architecture azure beach blue boulders bright burrone cala clear cliffs clouds coastal coastline construction crystal defense della emerald forested generic granite hillside historical history holiday horizon island isola italy juniper landmarks light macchia medieval mediterranean mine monuments myrtle nature old panoramic passing pebble plants rocks rocky ruins saracen sardinia sardinian sea seashore seaside serpentara shoreline sightseeing sky spanish stone sunlit sunny tower transparent turquoise vacation vegetation waters wind windy