History, Nature, and the Giant Tortoises
Just a 20-minute boat ride from Stone Town lies Prison Island, also known as Changuu Island. Once intended to hold rebellious slaves and later used as a quarantine station, it is now a peaceful sanctuary famous for its crystal-clear waters and its incredible resident tortoises.
The island's main attraction is the colony of Giant Aldabra Tortoises, a gift from the Seychelles in the late 19th century. Many of these gentle giants are over 100 years old, with the oldest reaching 190+ years! You can walk among them, feed them, and even scratch their long necks.
The island is surrounded by a beautiful coral reef. We provide snorkeling gear so you can explore the colorful marine life and tropical fish in the calm, turquoise waters. If you prefer to relax, the white sandy beach is perfect for sunbathing.
Walk through the historic prison ruins that gave the island its name. Although never actually used as a prison for criminals, the buildings remain as a reminder of the island’s role as a quarantine station during the yellow fever outbreaks.
The journey itself is a delight. You'll board a traditional motorized wooden dhow from the Stone Town waterfront, offering you a unique view of the city’s skyline from the ocean.