Bajo Nuevo Bank, also known as the Petrel Islands (Spanish: Bajo Nuevo, Islas Petrel), is a small, uninhabited reef with some small grass-covered islets, located in the western Caribbean Sea at 15°53′N 78°38′W / 15.883°N 78.633°W, with a lighthouse on Low Cay at 15°51′N 78°38′W / 15.850°N 78.633°W. The closest neighbouring land feature is Serranilla Bank, located 110 kilometres (68 miles) to the west.