Introduction This program is designed to develop the skills and knowledge necessary for an individual to lead certified divers in the open water environment. Student Prerequisites Minimum age 18 Certified SDI Advanced Adventure Diver or equivalent; advanced certification must include verifiable experience in deep, navigation, night, and limited visibility specialties Certified SDI Rescue Diver or equivalent Provide proof of current CPR, first aid and oxygen provider*, where local law permits Provided proof of at least 40 logged dives (see 3.11 for number of dives / hours required for graduation) *Note: CPR, first aid and oxygen provider courses may be combined with the SDI Divemaster program by qualified instructors Course Structure and Duration The student must Give a minimum of 5 briefs/debriefs Show preparation, planning, and control in dive management and diving activities Guide a minimum of 4 dives with varying sites and environmental conditions Course Structure SDI allows instructors to structure courses according to the number of students participating and their skill level Duration A minimum of 40 hours; a minimum of 30 hours under the direct supervision of the SDI Instructor