Just booked our first land/sea (4 nite Poly/3 nite Wonder) for July 3rd. Our last 4 visits have been during less crowded times. Now that my DD(6) is in 1st grade I wanted to wait until school is out. I know it is hot but anyone that can offer advice and feedback about this would be great. I am also wondering how the 3 day cruise compares to the 4 day cruise.