Basically, the most generous way of getting a scuba diving certification is by enrolling in a scuba diving school which happens to base its curriculum from a certified agency for scuba diving. Mostly, these scuba certification agencies take the responsibility of representing and controlling operators and professionals while at the same time taking the role to promote marine environment and sports. Upon successful completion of the given training, one is then certified as a scuba diver. However, to be permitted to rent scuba equipment and be able to scuba dive with the professional diver operators, you have to obtain the scuba diving license from the agency.
There are many scuba diving certification agencies available hence the best thing would be finding out the one that is closest to you though you have to also understand in advance that the approach in various scuba diving agencies may vary. Most interesting thing is that one need not be disturbed by this fact as the training given to the scuba divers is similar in most agencies and that there is nowhere that qualifications from a given agency could be disregarded. Note that some scuba diving agencies are natives meaning they relate to the country’s origin while others are big global organizations recognized worldwide.
About the scuba lessons that scuba divers are supposed to go through, there is the theory part of the training where learners are taught on basic scuba concepts and techniques of enhancing scuba diving safety. Here, the learners are given briefings concerning scuba safety and they may as well watch videos tailored to introduce them to scuba. The theory lessons also include various scuba hand signals used in underwater communication. The most essential part of the lesson is introducing the learners to the various equipment of diving that they will be using during and after training. Another thing involved in the learning is learners being expected to read books for a better understanding of the subject like how depth and pressure relate, assembling of scuba equipment, maintenance of the equipment and use of dive tables when planning a dive.
The other part of the training could involve practical on confined water training where learners get to experience breathing underwater and use of scuba equipment to practice surfacing and buoyancy skills. With several exercises, one is given a final exam which they must pass to commence on the open water training. Lastly, when the learner has gone through the necessary tests successfully and the instructor is okay with their progress they are certified as official scuba divers.