St. Mary’s Island and Lighthouse on the coast near Whitley Bay. Les Bell April 21, 2021 2021, Coast, Lighthouses, Northumberland, Seaton Sluice, St Mary's Island, Tyne & Wear, Whitley Bay Views of St. Mary’s Island and Lighthouse on the north east coast between Seaton Sluice and Whitley Bay. St. Mary’s Island and Lighthouse on the coast near Whitley Bay.