|Trainee Diver||Novice Diver||Basic Scuba||Elementary Diver||–|
|Open Water Diver||Ocean Diver||Open Water Diver||Open Water Diver||1 Star *|
|Advanced Adventure Diver||Sports Diver*||Adv. Open Water Diver **||Club Diver*||2 Star *|
|Dive Leader||Dive Master||Dive Leader||2 Star *|
|Master Diver||Advanced Diver||–||Dive Supervisor||3 Star *|
|Master Diver||1st Class Diver||–||Dive Master||4 Star *|
|*equates to CMAS 1* until 10 additional dives have been completed
** equates to CMAS 1*
More about SDI
Scuba Diving International (SDI) was launched in 1999 and developed from dive professionals in the technical diving field. It is the sister company of Technical Diving International (TDI), which specialises in the more advanced disciplines of dive training such as mixed gas and rebreather diving.
SDI’s philosophy is to take recreational scuba diving to new levels, enhancing older diving practices by incorporating new diving technology and emphasising safety. Divers can progress through SDI’s recreational levels, then transition smoothly into technical diving with TDI.