We'll be getting off the Wonder on July 4 morning and heading to Radisson Barcelo for 2 nights--cannot decide between Sea World one day, then Universal, or Disneyworld--do they have fireworks display at Seaworld or Universal on July 4th? Is everywhere absolutely packed? And is it imperative to get tickets ahead of time for these places (like off the parks' web sites or Florida Tix or whatever) --or can just get them when you get there? (for people like us who haven't decided yet)--kids don't care much for big wild rides--considering the heat, maybe a water park would be good for a day--so if you only had 2 days there, what would you do?? Kids are 8 and 12 year old girls--and have never been anyplace like this!!--Thanks so much!! Would love to hear some ideas!