11 muck dive sites in Philippines.
By area: Visayas (3), Negros Oriental (2), Batangas (1), Luzon (1) and Siquijor (1).
Recorded maximum depths range from 10 m to 38 m (10 of 11 sites have a depth).
By level: 8 beginner and 1 intermediate.
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.