Tunggul Wulung Airport — Cilacap, Indonesia

Tunggul Wulung Airport, marked CXP, serves Cilacap, an industrial port city on the southern coast of Central Java known for hosting one of Indonesia's largest oil refining complexes. Flights through CXP mainly connect the city to Jakarta and other domestic points, supporting workers and business travel tied to the refinery and shipping activity rather than any significant tourist trade. Just offshore sits Nusakambangan, an island long used to house some of Indonesia's highest-security prisons, adding an unusual footnote to a region whose economy otherwise centers on heavy industry, fishing, and the agricultural produce of the surrounding Central Java lowlands.