PADI Open Water Dive Manual is an easy to read and follow step-by-step text book which is designed to give the student the fastest and safest system to completing an Open Water Dive Course. Manual has five modules that include all classroom, confined water and open water training that you will need to become a certified diver. The Recreational Dive Planner Table (RDP) is in feet of water (imperial version) and informs the new diver of safe depth and time limitations for recreational diving.