It looks like to me that you are going to be on the Dream and with your question it sounds like a 4-day cruise. Just imagine 3,500 people trying to anything and everything and you have one day to do it. Yes, it's that crazy. They will have movies in the theater at approximately 8:00, 2:00, 5:30, 8:00 and 11:00. The 5:30 and 8:00 will probably be the same movie. The pools and deck 11 will be crowded from about 10am till about 4:30. Pretty much the pool is to hop it, find a spot and stand till you get out. They will have movies outside on the jumbo screen showing all day. You can sit on deck 12 and watch the movies, have sunscreen on. Breakfast is served in Cabanas from about 7:00 (approximately) till about 11:00. Check your Navigator but they sometimes have breakfast on 1 side around 11 while the other side is setting up. I think lunch in Cabanas is open till around 2 (I think). we always do lunch when it first opens so we can get a table. All the shops will be open for you to purchase items. If you want the kids to swim, I recommend the following: get up and around and eat breakfast, be at the pool by 10am, swim till you want to leave to get showers, hit Cabanas or quick service for lunch, play miniature golf on deck 12 (about 20 minutes), watch a movie, get dressed for dinner, eat dinner or go to the show (whichever order you have), grab a piece of pizza or some fried on deck 11, and then fall asleep watching a movie on tv (on demand) in your room.
I am in no way trying to be a down for your sea day, they are GREAT, but I want you to be prepared.
Any other questions, ask away.