178 dive sites in Yucatan Peninsula, Mexico: 75 reefs, 25 caves, 13 walls, 6 wrecks, 1 artificial reef, 1 pinnacle, 1 shore dive and 56 other sites.
Recorded maximum depths range from 1 m to 119 m (119 of 178 sites have a depth).
By level: 57 beginner, 22 intermediate, 28 advanced and 6 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.