{magandaako1977} Yes swimming is at least necessary and required. I know some of the divers are not really good in swimming and I know 2 guys personally. I tell you why.... Scuba Divers has gears that help you float in the surface and we called that BCD (Buoyancy Control Device) it's life life vest when you fully inflate it..... Why not try sign up for Discover Scuba Diving and you can check if you like it or not. PM me for your e-mail or call me +974 5086973