Personally I think I would ask your friends as they are the best ones to answer this one for you !!
Personally I would make sure that they are your friends and stick very close to them throughout the cruise. Lucy.
It's never been an option on the Carnival's I've been on & nothing shows on their website for that date regarding drinks packages. In fact if I recall correctly Carnival do not even offer a Wine Package on their ships. Talk to your friends, talk to your T.A., or phone Carnival UK 0207 940 4466 .