SDI Divemaster The SDI Divemaster certification is the first professional rating in recreational diving. It qualifi...

SDI Assistant Instructor The SDI Assistant Instructor course is the step between Divemaster and full Open Water Instructor. Y...

SDI Instructor Teaching scuba diving is one of the most direct ways to stay connected to the underwater world and s...

SDI Crossover If you hold a professional certification from another dive agency, SDI accepts crossovers from all q...