Discover the history and beauty of Prison Island on this guided boat trip. Once a quarantine station for yellow fever, this island is now home to giant tortoises and stunning beaches. Explore the ruins of the old prison and enjoy snorkeling in the surrounding coral reefs. This tour offers a blend of history, wildlife, and relaxation, making it a must-visit during your Zanzibar adventure.

History and Wildlife on Prison Island

Prison Island (Changuu), a short boat ride from Stone Town, is home to the ruins of a 19th-century prison that was never used to hold prisoners, as well as a sanctuary of giant Aldabra tortoises, some over 100 years old. Visitors can walk the island’s grounds, learn its unusual history, feed the tortoises, and snorkel in the surrounding coral reef teeming with reef fish. The combination of history, wildlife and clear-water snorkeling makes Prison Island a favorite half-day trip from Stone Town, and it pairs easily with a city tour on the same day.