The Open Water Course (OW) is the first entry-levelcourse to PADI certification; is a 4-days courseconsists of five academic sessions, five confinedwater session (swimming pool or bay) and fouropen water dives to a maximum depth of 18munder the guidance of a certified PADI Instructor.After completion of the OW Course, students become internationally recognized certified divers and maythen dive without professional supervision.