Prison Island (Changuu) Day Tour
Meet the Aldabra Giant Tortoises and Explore Zanzibar's Colonial Past.
A Journey to Changuu Island
A short, picturesque boat ride from Stone Town, **Prison Island** (officially Changuu Island) is a tranquil paradise with a dramatic history. Built in 1893 to house violent prisoners, it was quickly converted into a quarantine station for yellow fever patients arriving from the mainland.
Today, the island is most famous for its sanctuary of endangered **Aldabra Giant Tortoises**. Originally a gift from the British Governor of Seychelles in 1919, the population has thrived. Visitors have the unique opportunity to interact with, feed, and photograph these ancient, gentle creatures, some of which are over a hundred years old.
Beyond the tortoise sanctuary, the tour offers time to explore the remaining prison ruins, relax on the pristine white sand beaches, and enjoy excellent swimming and snorkeling in the shallow, clear turquoise waters just off the coast.
Key Excursion Highlights
Giant Tortoise Sanctuary
Spend time with the legendary Aldabra Giant Tortoises. Learn about their conservation and even feed them (under supervision).
Dhow Boat Trip
Enjoy a relaxing and scenic 20-30 minute traditional dhow boat ride across the calm waters of the Zanzibar channel from Stone Town.
Snorkeling & Swimming
Dive into the clear waters surrounding the island. The shallow reefs are perfect for beginner snorkelers.
Historical Ruins
Explore the remains of the 19th-century prison and the former quarantine station, offering a glimpse into colonial history.
Island Photo Gallery




Prison Island Tour FAQs
The Prison Island tour is a classic half-day excursion, typically lasting around 3 to 4 hours in total, including boat transfers from Stone Town.
Boats usually depart from the main harbor area of Stone Town, making it very convenient to combine this tour with a Stone Town cultural walk.
Yes, under the careful supervision of the sanctuary staff, visitors are usually allowed to gently touch the tortoises and feed them specific vegetables (like cabbage) provided by the keepers. Always follow the guide's instructions.
Sunscreen, a hat, swimwear, a towel, and cash for tips or souvenirs. Snorkeling gear is usually provided by the tour operator, but you are welcome to bring your own.
Book Your Historical & Wildlife Encounter
Prison Island is a must-do half-day trip for anyone staying near Stone Town. Combine this tour with a Spice Farm visit or a Stone Town walk for a full day of Zanzibari discovery.
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