aerial of bird flying over Skagen beach with no people and grassy dune landscape in Denmark

skagen beach baltic sea skagen denmark grassy dune shoreline sand dunes shore coastline sea seascape denmark white sand tide ocean nature reserve sandy national park pristine environment landscape waves calm ripples blue ocean untouched water summer nature no clouds no people seaweed scandinavian wilderness golden hour empty daytime blue sky wide waves crashing aerial sunset hill europe natural park outdoor bird flying grass forest