Greg - 8/13/2008 11:19 PM
I think PADI offers a quicker Open Water course than NAUI. I say that NAUI’s open water cert. is probablly equivelant to PADI’s advanced cert. (as far as time, dives and money required). So for an instructor...there may be more money in teaching for PADI (quicker turn around time for new open water divers). But NAUI gives students a lot more information in their basic classes.