rocky beach with green seaweed and and cliffs in the background along opal cost of the north sea in france

adventure algae along and backdrop background beach blue boulogne calais clear cliffs copy cost cote day detail empty europe european france french geologic geology green hike hking holiday landscape mer natural nature nobody nord north opal opale pas pebbles region ripples rock rocks rocky rrocky sea seascape seaweed sky space stone stones summer sunny sur tourism tourist travel villag village wave waves wimereux