I wouldn't worry too much. For the classroom sessions we have self-study kits both for NAUI and PADI. The DVD format is the easiest to use for searching for information. As far as the waterwork goes that's where the instructor comes in. Remember, Scuba Diving is FUN and so is learning it. So relax. If you have questions or need advice feel free to contact any of our instructors. We'll be happy to help.