A Dive Control Specialist (Dive Con) is an SSI (Scuba Schools International, the second largest scuba certification agency) professional ranking. A Dive Con is both a dive master as well as an assistant instructor. The closest match would be a PADI or NAUI Dive Master. Responsibilities of a Dive Con include teaching open water courses (under the direct supervision of a dive instructor), demonstrating skills, teaching snorkeling and scuba refresher courses, leading dives, and assisting the dive instructors with whatever they need. Being a Dive Con is very rewarding as well as exciting. If you want more details or would like to know how to become a Dive Con, please let me know!