S.S.
S., How are you getting to disney world? Are you going on a plane? Is the baby going to be a lap baby (didn't know if they even allow that anymore) or having her own seat. You say she is a very energetic little girl. I would suggest having a way to confine her for part of the trip at least. Now past that point. When you get off the plane in florida. Your going to need a carseat for the trip from the airport to disney world and again from disney to sea world. if your family that is going to be there with you has one maybe they could bring it. either way your will need one when your coming / going from airport. Disney world rents strollers. are you bringing your own? or planning to rent one? Disney is huge. with an 18month old you will definitly need one. I liked our own for when they were younger as they have padding / covers etc. but disney rents very utilitarian ones. they get the job done. and its nice to have a place to put the diaper bag, camcorder, water bottles etc. good luck have a great trip
S.