washed ashore at the north sea coast

acorn algae aquatic balanoides barnacle barnacles beach black bladder bladderwrack brown close closeup coast coastal colorful crustacean europe fucus life low marine nature north outdoor pattern rock rockweed sand sea sealife seashell seashore seaside season seaweed semibalanus sessilia shell shore shoreline stone sunny texture tidal tide vesiculosus water wet wrack yellow