Cabanas and Enchanted Garden is open (as well as some counter service I believe.........I never do those upon embarking, so I'm not 100% sure). I'd do Cabanas. Enchanted Garden, while beautiful, just isn't set up well for a buffet. Also, when I sailed in March, there were really no kid friendly items on the buffet. I asked several servers if there was anything available for kids since I had heard that other DISer's had success with this, but they said no, that all that was available was on the buffet.