Prison Island, also known as Changuu Island, lies just off the coast of Stone Town in Zanzibar. Originally built in the late 19th century as a prison for rebellious slaves and later used as a quarantine station, the island today is a fascinating blend of history and natural beauty. Visitors can wander through the old prison ruins, learn about its colonial heritage, and encounter the island’s most famous residents—the giant Aldabra tortoises, some of which are over 100 years old.

Beyond its historical significance, Prison Island offers breathtaking views of the turquoise Indian Ocean. The surrounding coral reefs make it an excellent spot for snorkelling, where colourful marine life thrives. With its mix of culture, wildlife, and relaxation, a tour of Prison Island is a must-do experience for anyone visiting Zanzibar.