S.C.U.B.A. - Self Contained Underwater Breathing Apparatus

S.C.U.B.A. Means - Self Contained Underwater Breathing Apparatus.
The Scuba Diving system, as we know it today, is the result of technological developments and innovations that began almost 300 years ago. Scuba diving is the most extensively used system for breathing underwater by recreational divers throughout the world, and in various forms, scuba diving is also widely used to perform underwater work for military, scientific and commercial purposes.