Punta Tuna Light is a historic lighthouse located in the southeast of the town of Maunabo, Puerto Rico on a sharp promontory at the southeastern most point of the island. It was first lit in 1892 and automated in 1989. The light was a third order lighthouse that served as primary light connecting the island's southern and eastern lights system. The design was drawn and laid out by Joaquin Gisbert in 1890. The Lighthouse construction was initially overseen by Adrian Duffaut.