Seamingo

Your original plan to put the kids first is the best decision, and I would expect the kids’ grandparents would say the same. There is plenty of shade under the thrill park cabanas and from there, you can all enjoy the kids playing and it’s easy for the kids to stop back to rest and tell their stories (and you!) while they are fresh and excited. Stick with the thrill park cabana.

Miami and Ft Lauderdale are close together. You might be able to get ships on the same day. An online search shows they are 30 minutes apart so perhaps use that hotel money towards a driver or taxi?

Only the original people in your cabin can be moved to the bid cabin. Can’t add anyone from a different cabin or new booking.