Advanced Adventure Diver TrainingIntroduction The purpose of this course is to give the diver an overview of 5 different specialties, 2 core, and 3 additional SDI Specialties. The two core specialties are, SDI Deep and Navigation. One dive, from each of the specialties, may apply toward a complete specialty certification. Overhead environments and non diving specialties are not allowed, and do not count toward the 3 chosen specialties. If one of the elected specialties is computer
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