92 dive sites in Mariana Archipelago, United States: 16 reefs, 7 shore dives, 6 walls, 5 caves, 3 wrecks, 1 artificial reef, 1 pinnacle and 53 other sites.
Recorded maximum depths range from 18 m to 31 m (3 of 92 sites have a depth).
By level: 2 beginner, 1 intermediate and 4 advanced.