Four Lake Michigan lighthouses sit near the park's western boundary. Stations at Grays Reef, Skillagalee Island, Waugoshance, and White Shoal warn shipping away from the dangerous reefs and shoals of Waugoshance Point.
Nearby Lake Michigan lighthouses, located on the western border of the park, serve as warning signals for ships to avoid the treacherous reefs and shallow areas at Waugoshance Point. Four stations, including those at Grays Reef, Skillagalee Island, Waugoshance, and White Shoal, provide this crucial navigation information.