A few questions that I would appreciate help with: 1. Plan is to go to Sea World on Martin Luther King day in January 2014 to avoid the large crowds at Disney. Will Sea World be just as nuts? 2. I have touring plans so I have mapped out our days for the Disney parks. Do I need to do something similar for SW or can we just show up and wing it? 3. We are also doing DC. My DD will be 5 1/2 and my son will be 8. I know you can't do the dolphin swim until your are 6. So my question is, do they check ID? Will I need to bring passports to proove my kids age? TIA!!!