We have 21 nights next July - August for our third road trip. It's proving a little tricky and would like advice. We are staying for 2 or 3 days in San diego at the beginning then finishing off for 8 or 9 days on the coast and in LA (we have 2 teenage girls). That leaves around 10 days on the road and as an old western fan I would like to see tombstone - monument valley - Bryce Canyon - Zion. Would appreciate how I might knit this together. have previously done vegas-death valley-Yosemite-la-grand canyon so would prefer to avoid those if possible. I don't mind piling 350 miles into the occasional day.