58 reef dive sites in Tanzania.
By area: Zanzibar (20), Pemba (14), Pwani (9), Kaskazini-Unguja (5) and Zanzibar West (2).
Recorded maximum depths range from 7 m to 40 m (40 of 58 sites have a depth).
By level: 30 beginner, 5 intermediate, 8 advanced and 1 technical.
Species confirmed at these sites by diver sightings (three or more independent divers) or by two or more independent sources, with the number of sites each is confirmed at.