22 reef dive sites in Vietnam.
By area: Khanh Hoa (8), Kien Giang (5), Quàng Nam (3), Ba Ria-vung Tau (1) and Khánh Hòa (1).
Recorded maximum depths range from 5 m to 35 m (10 of 22 sites have a depth).
By level: 12 beginner and 3 advanced.
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.