Trip planned 7/2-7/10. 1st day at parks on 7/3.Have 10 YO DD, 6 YO DS, who will be anxious on this day and get up and moving but feel all will catch up w/them on worst day of crowds...4th of July! Anyone have any help as to dealing with major crowds and not quite getting to a park at 7a.m.? Should we just enjoy our hotel this day and not use up one of our 4 day hopper's? Last trip we went 5/95 and crowds were crazy then too. Also, do parks close due to heavy attendance and you an't get in, like say to see fireworks etc.