Yes nursery is open on the WISH. You can make the reservations online when you do your port adventures. It is $9 an hour. You can go in that first day and see everything for yourself and meet some of the staff during Open House hours. You can fill out the paperwork and get your magic band and drawstring bag for anything your child might need. Label anything that is put into the bag each trip. After that you will drop off your child to a CM at the entrance and pick them up at same place.