Learning how to scuba dive depends on you. The CMAS* or equivalent comprises a theoretical section, confined and open water sessions. It usually takes between 3 and 5 days to complete. If you are already comfortable in the water and a keen swimmer then the course may take as little as three days. 

The theoretical part takes between 12 and 15 hours to complete and comprises a book and video session, quizzes and exams. Some agencies now offer this as eLearning which can be completed at home, virtually, before starting the practical part.

During the theory part of the course, the student learns about the basic principles of scuba diving, how diving affects our bodies, how to handle emergency situations, what we can see and the physics of the ocean. It covers how to become a diver and the relative skills that will be completed in confined and open water. 

In the confined section you will learn how to prepare, handle and clean your equipment. Safe buddy practices and checks, how to handle emergencies and work on improving your buoyancy underwater. There are a series of skills to complete from how to clear a mask to removing your weight-belt under the water before replacing it. 

In order to complete your certification, there are 4 dives to a maximum depth of 20 meters. During these dives you will practice skills, work on your buoyancy and uncover the beauty of the underwater world. Your instructor will be by your side to offer help. Once you have completed the course and relevant exams, you are technically a certified scuba diver. You are able to dive, with a buddy, unsupervised. Although, most people with experience will argue that it takes much longer to become a diver. It is also important to note that you should always get local advice when diving in a new place and do an orientation dive.

As with anything in life, the more you do something, the better you will become. After your course you will have all the knowledge to be a scuba diver, how you use it and whether you put it into practice is up to you.