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History & Wildlife Changuu Island, Zanzibar

Prison Island & Giant Tortoises Tour

Take a scenic 30-minute motorized dhow ride from Stone Town to Changuu Island. Meet giant Aldabra tortoises, explore colonial prison ruins, and swim in crystal-clear waters.

Prison Island Giant Tortoise

Tour Overview

Prison Island, officially known as Changuu Island, is situated just 5.6 km off the coast of Stone Town. Originally acquired in 1893 to build a prison complex for rebellious slaves, it was later repurposed as a yellow fever quarantine station. Today, the island is world-famous as a sanctuary for Aldabra giant tortoises, some of which are over 190 years old.

Tour Highlights:

  • Aldabra Giant Tortoise Sanctuary Feed, pet, and take memorable photos with majestic giant tortoises originally gifted from the Seychelles in the late 19th century.
  • Historic Prison Ruins Exploration Walk through colonial quarantine quarters and old prison buildings while uncovering their role in East African maritime history.
  • Snorkeling & Reef Swimming Relax on the white sandbar and snorkel along vibrant coral reefs teeming with colorful tropical fish and starfish.
  • Scenic Wooden Dhow Ride Enjoy a relaxing boat cruise across the turquoise waters of the Zanzibar channel with sweeping skyline views of Stone Town.
Instant Booking

Reserve Your Tour

From $30 / person
Estimated Total: $60

No advance deposit needed • Free cancellation