Seagulls flying over fort of São João Baptista aerial view orbiting shimmering coastal ocean fortress landmark, Portugal

seagulls flying over fort sao joao baptista aerial view orbiting shimmering coastal ocean fortress landmark portugal seascape hillside circling looking down historic sao joao baptista das berlengas archipelago holidays military sightseeing abandoned settlement platform granite octagon monastery cliff historical fortification tourist attraction portuguese medieval sunny shoreline coastline rock waves scenic vacation tourism ancient mysterious heritage bridge island coast