Pulau Jerejak, a 3.6 km² islet just off Penang’s eastern shore near Bayan Lepas, has had a dramatic evolution over time. It started as pre‑colonial fishing villages but, under British rule, became a leprosarium (from 1868), a quarantine station (notably between 1877–1957), a TB sanatorium, and later a high-security prison known as “Malaysia’s Alcatraz” from 1969 to 1993. After the prison closed, the government opened Jerejak Resort & Spa in 2003, which later shut down.
Today, about 77% of the island is forest reserve, and there are initiatives to redevelop parts for eco‑extreme sports like mountain biking and flying fox, while conservationists push for UNESCO heritage recognition to preserve its rich history
