I am a diver as well and my fiance is not. We both did this last May and it was incredible. The water is a little cold, even with the wetsuits (around 72 degrees I think), but the experience is well worth it. I have done Disney's DiveQuest as well, and I can't really compare them...they are different. I prefer the diving without limitations like DiveQuest, but being in a shark cage when you get 4 or 5 12-15 ft sharks swimming by you and staring at you is certainly an amazing experience. We cannot wait to go back and do it again!