42 reef dive sites in Sri Lanka.
Biggest areas: Tamil Nadu (13), Gālla (12), Mātara (4), Maḍakalapuva (3) and Hambantŏṭa (2).
Recorded maximum depths range from 3 m to 40 m (38 of 42 sites have a depth).
By level: 26 beginner, 3 intermediate and 8 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.