SCUBA is NOT cheap, yeah you can get a cheap class, but usually you get what you pay for. Are you planning on buying cheap gear, dont forget this is not simple snorkling equipment, this is life support. Or are you just going to rent all your gear, that gets expensive, and don't forget the boat fees. I used to tell people they can certified with their personal equipment (mask, snorkel, fins, gloves, blooties) class, pool session, open water check outs for about $1000 with good equipment. Yeah you can do it for less money, but your doing it cheap, not just inexpensive.