Just a word of advice-try not to make it too "perfect". That only sets you up for failure. Be prepared to have plans B & C on top of Plan A. You'd be surprised at how little it sometimes takes to keep a child that age happy. My fondest memory of my dad is him taking me to feed the ducks after my eye dr. appointments. Don't try to do too much-take some time to stop and smell the roses. if she likes caves I'd go to Wind Cave in SD, possibly Badlands, and Bear Country USA. You need to make reservations ASAP. Many campgrounds are already booked solid for the season.