I found a pretty good rate for December on the Wonder for Western Caibbean but I was curious how the weather will be. Key West? Grand Cayman? Cozumel? Castaway Cay? Any insight would be great. We have never cruised with the kids before and this trip is going cost a ton of money so I want it to be awesome. Another thing is do you know when the Christmas decor gets put up on the ship? Thanks everyone. Or would you do the 3 night in Oct for half the price?