46 cave dive sites in East Asia.
By country: Japan (36), Taiwan (5), China (4) and South Korea (1).
Recorded maximum depths range from 5 m to 212 m (36 of 46 sites have a depth).
By level: 5 beginner, 1 intermediate 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.