My dd just turned 3 and is not potty trained. She loved Flounders, again she called it "her club" as big sister had "her club" she colored, did playdoh, painted, danced along the Wiggle's videos, and helped with the babies. I took her to the Oceanears club for a few hours, but felt it was over her head. I am glad she stayed in Flounders. The only problem is that they close from 2:30-5:45. So we had to rush back from Nassau, then we barely made it to our 6pm dseating for dining. I don't know what we would have done if we had 5:30 seating...
you can book 10 hours prior boarding, then book more hours once your on the ship.