So, It'll be a 25, 27, 6, and a 15 yr old going on a cross country roadtrip. We want to see some of the major wonders, visit some national parks, hike, hot air balloon, white water rafting, grand canyon, Sand Dunes, camping out, death valley, niagara falls, swim in a lake, eat bbq, visit farm/cowboys. We'd prefer no more than 3-4 nights at a nice hotel, probably in a city. The rest divided between cheap hotels, camping.
I made a basic map, and need help nailing down the likelihood of making this happen realistically. What places should we cut out to maximize time in each location.
Map is here.