Pemba Island was known to the Arab sailors as the ‘Green Island' and is a tropical island paradise fertile, heavily vegetated, palm tree lined beaches and the coral reefs that surround the island offer some of the best diving anywhere in the world. The island’s tourism industry is not as developed as Zanzibar’s and consists primarily of a few resorts. Pemba is also the world's major clove producer and an internationally renowned African voodoo and traditional healing centre.