“Prison Island is simply Paradise on Earth. One of Zanzibar’s best known attractions, the island lies 3 1/2 miles to the northwest of Zanzibar’s Stone Town, a short 20 minute dhow ride from Stone Town, and like Zanzibar has a fascinating history.
The old prison buildings – which were later used as a quarantine station – have been meticulously restored by the present owners to create a modern boutique hotel whilst preserving the historical treasures.” (1)
[1]-http://www.docstoc.com/docs/154927875/Prison-Island—Hotels-and-Lodges-Tanzania-Ltd