87 cave dive sites in Greece.
Biggest areas: Ionian Islands (27), South Aegean (13), Crete (12), North Aegean (5) and Attica Region (4).
Recorded maximum depths range from 10 m to 60 m (25 of 87 sites have a depth).
By level: 11 beginner, 8 intermediate, 12 advanced and 2 technical.
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.