Siguanea Airport — Isla de la Juventud, Cuba

Siguanea Airport, coded SZJ, is a small airfield located on Isla de la Juventud, Cuba's second-largest island, situated south of the mainland in the Caribbean Sea. The airport primarily serves tourism tied to the island's popular diving sites, including the Punta Francés marine park known for its clear waters and coral reefs. Given the island's relatively low population and limited infrastructure, SZJ operates with modest facilities suited to smaller aircraft and charter flights rather than large commercial jets. Isla de la Juventud has a distinctive history, having once hosted a youth education program and a former prison associated with Fidel Castro. SZJ provides an alternative access point to the island beyond ferry services from the Cuban mainland, supporting both tourism and local transportation needs.