43 dive sites in North Aegean, Greece: 7 reefs, 6 wrecks, 5 caves, 4 walls, 1 pinnacle and 20 other sites.
Recorded maximum depths range from 5 m to 45 m (15 of 43 sites have a depth).
By level: 9 beginner, 1 intermediate, 5 advanced and 1 technical.