close view of rocks covered with brown and green seaweed during low tide

alga aquatic asturias background bay beach beautiful boulders cervigon coast coastal coastline colours copy space detail ecology edge environment exposed flora flow geology gijon green greenery grey horizon intertidal low tide marin nature outdoor plant pools rinconin rinconashy rock pool rocks sea seascape seawater seaweed shallow shore sky slippery spain stone texture tideland tourism travel vacation wallpaper wet zone close view covered brown large