I contacted Carnival and they faxed me a complete listing with prices.... If you get the chance and have the time give them a call....I have my copy - I have written all over it, but you can still make everything out..I can fax it to you on Monday 02/17 if you would like, just send me a fax number... There are about 15 differents ones for the Grand Cayman and about 22 for Cozumel...Let me know
We did glass bottom boat in Caymen, very enjoyable. Mayan ruins at Tulum in Cozumel, unforgettable experience, but very long (8hrs)and structured type tour.
Enjoy, and make sure you buy a rum cake in Caymen.