Prison Island lies a quick 20-30-minute max boat ride from Stone Town. The island used to be a prison and quarantine station in the past, while now it is inhabited only by giant land tortoises imported from the Seychelles in the 19th Century.
After your quick boat trip is over you will stroll through the forested island, spotting birds and other small wildlife (you may even spot duikers if you’re lucky!). You can feed the Giant Aldabran Tortoises, some of whom are over 100 years old!
If you wish you may also rent snorkeling equipment and go for a quick swim off the lovely white beach.