Tanzania is without doubt a global dive destination. It has an Indian Ocean coastline that is literally packed with fish, and bordered by a fringing reef. Where there are Islands such as Mafia, Zanzibar and Pemba, the marine life becomes even more prolific, and the reefs and deep walls even more adventurous. There is something for everyone in Tanzania. The diving on Zanzibar itself varies from wrecks to reefs to the deep. Pemba island has the steep walls and pelagics in the cooler months, and the protected lagoon of Mafia allows year-round diving in calm conditions.