We go to CN and do both dives every day for a total of 11 during our one week stay.
I believe if you do the resort course you get one free dive. After that is is $50/dive. They want you to do the PADI OW course. Then you do the one after the resort course + 3 more in a row the 2nd day. After that you are certified and can join the boat for the 9am & 1:30pm dives.
If that is the case sign up the first day as this resort course can fill up fast. That way you can get in alot more diving. For free!
The night dive also costs $50/dive but they need a certain number of divers before they will go out.
Couples Negril - September 2011, 2012, 2013 and have just booked 2014
Scuba Club Cozumel - Jan, Apr & Nov 2012 and Jan & Nov 2013
Cobalt Coast, Grand Cayman - May 2013
Retiring & moving to Cozumel, Mexico in early 2014