Coral reefs are rightly extremely popular with divers. Hovering over a healthy reef teeming with underwater life is a dream come true. These rare ecosystems are fascinating. SSI's Coral Identification Specialty program is the best way to learn more about coral reefs and make the most of reef dives. In this specialty program, you will learn the skills and concepts to identify common families of coral species and earn your SSI Coral Identification Specialty certification.