RE: Maui dive center. You get the full tank. They provide air, weights and training. You are the only one in the tank. There is a waiting list so plan early...Id want to be overweighted some in there, the bottom is where you want to be....I'll post pics when I get to do it....Per one of my navy diver budddies, "IT WAS THE BEST DIVER I HAVE EVERY DONE!"....Besides, anybody can dive IN a cage.