296 dive sites in California, United States: 47 reefs, 12 wrecks, 11 shore dives, 6 walls, 5 caves, 5 pinnacles, 1 artificial reef and 209 other sites.
Recorded maximum depths range from 3 m to 122 m (112 of 296 sites have a depth).
By level: 78 beginner, 8 intermediate, 18 advanced and 3 technical.
Species confirmed at sites here by diver sightings (three or more independent divers) or by two or more independent sources, with the number of sites each is confirmed at.