What does an Open Water Diver course give you Open Water Diver course is 5 days long. The maximum depth of plunging is 18 meters. Underwater practice is absolutely safe, because it is carried out under the guidance of an experienced and certified instructor. There is no need for an additional insurance, as it is already included in the price of the course. The diving center also provides you with equipment that is required to dive for 18 meters as a part of practical lesson. Before the start of the course every participant gets a full set of educative information. During the Open Water Diver course every student: goes through a course of theoretical lessons of a certified instructor watches and educative video, provided by the certifying agency receives practical skills in the swimming pool and in open water Having finished an Open Water Diver course and successfully passed the examination all the divers receive a certificate and are able to dive for not more than 18 meters in any part of the world.