Prison Island or Changuu Island is the middle island of the three visible from the Stone Town, it takes approximately 30 minutes to get there by boat. The prison on this island was built in 1893, intended for disobedient slaves of the islands wealthy Arab owner. It was later used as a quarantine Hospital. Changuu has a frangipani lined path around the island where the former patients took their evening walks. In present times, it is hard to imagine it as anything except pure paradise. Apart from the Prison ruins, you can also see the beautiful peacocks and the enormous giant tortoises, some of which are over a 100 years old. These tortoises were brought here from Seychelles by Sultan Said in the 1820's. Efforts are being made to pretect the eggs of the tortoise. The island is a superb scenario for the photographer. A self walking safari covers the island in approximately 15 minutes. On this little paradise you can indulge in swimming, snorkeling, sunbathing. The option of merely relaxing and enjoying the peacefulness of this beautiful island is also one that will stay in your memory for a lifetime.