It all depends on what you want to do. Our trip a few weeks ago, we did 3 parks on our last day, filling in all the things we wanted to do again or had missed on our previous days. We started at MGM, getting there for EMH, did rock n roller coaster, tower of terror, who wants to be a millionaire and then split. We took the bus to the magic kingdom, did splash mountain, big thunder mt railroad, pirates of carribean, and Mickeys philharmagic. We also fit in lunch. Took the monorail to Epcot where we spent the rest of the day, mostly in the world showcase, although the kids did play some games at innoventions. We also ate dinner there. My DS and I stayed till closing, while my DD and DW went back to the hotel. It was a long day but fun.