North Cape, also called North Port, is the northern extremity of Prince Edward Island, dividing Northumberland Strait from the Gulf of St Lawrence proper. From the shoreline a low cliff of PEI's characteristic red sandstone leads to shallow water, with irregular reefs extending north and east to North Point Reef 8 km offshore. North Point Light, beamed from a 19 m white octagonal tower, and a light and whistle buoy 2.8 km north of the cape are important aids to navigation. Principal occupations are fishing and agriculture. Silver fox farms were also common here until the demise of the industry in the late 1930s.