parallel rock formations on sea shore in tidal zone of sea with sun at sunset sunrise in background contre-jour shot backlit outdoors La Rasa Mareal flysch cliffs Basque Country Spain Europe

artificial atlantic background backlit basque bay beach beaches biscay cliffs coast coastal contre jour country eroded erosion europe flysch formations geologic geology la mareal natural nature ocean outdoors parallel parallels rasa rock rocks rocky sea shore shot spain steep stone stones stony sun sunrise sunset tidal washed zone zumaia