Master Scuba Diver
SDI requires rescue diver certification, 4 specialty certifications, and 50+ logged dives. PADI requires the same plus one additional specialty.
During the NAUI Master Scuba Diver course, you will perform a minimum of 8 dives. Rescue, deep, night, navigation, and a search and recovery dive are all required. The remaining 3 elective dives are chosen by you.