Giant tortoise watching

Giant tortoise watching in Zanzibar is best experienced on Prison Island (Changuu Island), a 30-minute boat ride from Stone Town, home to a colony of endangered Aldabra giant tortoises imported from the Seychelles in the late 19th century. Visitors can see, feed, and take photos with these creatures—some over 150 years old and weighing 200kg.

Key Details for Visiting:

Location: Changuu Island (Prison Island) Tortoise Sanctuary.
Highlights: Interacting with giant tortoises, viewing peacock colonies, and exploring former prison ruins.
Best Time: Year-round; combine with snorkeling for a full experience.
Access: Private or shared boat trips are easily booked from Stone Town.
Tip: It is advised to avoid sitting or riding on the tortoises; pet their shells gently instead.

About the Tortoises:

Species: Aldabrachelys gigantea (Aldabra giant tortoise).
Age: Many are over 150 years old.
Diet: They are often fed lettuce and other greens by visitors.

Alternative Experiences:

While Prison Island hosts the land-based giants, you can also see sea turtles at the Baraka Natural Aquarium in Nungwi, northern Zanzibar.