Aerial view of coastal dunes on sandbar teeming with marine birdlife - important marine ecosystem, Rockanje, Netherlands

aerial view sandbar sandy islet dunes rockanje drone flight aerial sandy beach marine ecosystem sea netherlands coastline islet seascape beach shoreline coast shore drone environment landscape terrain nature area sand high angle coastal seabirds ocean birdlife europe ecology maritime marine avifauna nature teeming scenic no people horizontal natural protection salty outdoors outside nobody