Are you not doing the Dolphin Encounter (which I highly recommend)? Make sure to bring a swimsuit/towel or change of clothes for the splash pad at Happy Harbor. Make sure to stay with the kids in the climbing net area, it is very easy to lose them in there. I think you budgeted enough (maybe even too much) for some of the animal viewing. I don't think a 2 yo would spend 40 minutes just looking at sea lions, but you know your girls best. I would suggest cutting that to more like 20-30 minutes, even with feeding (p.s. make sure to bring lots of cash for fish to feed the sealions, sharks, and other animals, this is lots of fun for kids!) Are you skipping the sharks area (which is very cool!)? Also, you will want to get to most shows about 20 minutes early for good seats (or seats at all during busy times) and the Shamu show more like 30 minutes early (it looks like you're cutting it pretty close here). You can bring in food to do outdoor shows. I'm guessing you have the meal plan, and we loved getting strawberries and oranges as a snack to bring with us. Hope you have a great time! We loved Seaworld so much.