Preview A warning sign about Blue Green Algae in Cavendish Dock in Barrow in Furness, Cumbria, England, United Kingdom, Europe Image ID: 911-7475 Artist: Ashley Cooper Purchase a commercial license Buy framed prints & more from our print store barrow in furness cumbria cavendish dock coast warning sign no swimming associated british ports blue green algae algae polluted poisonous day outdoors close up close ups signs england great britain united kingdom europe danger warning signs fishing pollution vertical