Advanced Open Water Diver Course The Advanced Open Water Diver Course takes 3 days. The dives are up to the maximum allowed depth of 40 meters. The Deep and Navigation dives are obligatory and you can choose 3 other dives from: Aware Fish Identification, Boat Dive, DPV Dive, Drift Dive, Dry Suit Dive (if you are about 70 kg.) Multilevel & Computer Dive, Peak Performance Buoyancy, Underwater Naturalist, Search & Recovery and Underwater Photography.