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Discover the fascinating history of Changuu Island — home to giant tortoises, historic prison ruins, and crystal-clear waters.
Prison Island, also known as Changuu Island, is one of Zanzibar's most popular and fascinating excursion destinations. Located just 5.6 kilometers northwest of Stone Town, this small island is steeped in history and surrounded by stunning turquoise waters teeming with marine life.
The island got its name from the late 19th century when it was used as a prison for rebellious slaves before being converted into a quarantine station. Today, the ruins of the former prison still stand as a reminder of its dramatic past. Visitors can explore the historic buildings and learn about the island's intriguing history.
One of the main attractions is the giant tortoise sanctuary, home to dozens of Aldabra giant tortoises that were brought from Seychelles in the 19th century. These gentle creatures can live for over 100 years and some are still thriving today. After visiting the tortoises, visitors can snorkel in the crystal-clear waters, swim, or relax on the pristine white-sand beaches.
What makes Prison Island a must-visit destination.
Meet and feed the famous Aldabra giant tortoises that have lived on the island for over 100 years.
Explore the ruins of the former prison and quarantine station that give the island its name.
Enjoy the crystal-clear turquoise waters and colorful marine life — perfect for snorkeling and swimming.
Explore our packages that include Prison Island excursions.
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