I'd skip California, but that is just me.
You have got to see Las Vegas, not for the gambling but for the glitter, and pure unbelieveability of it. Take the dam tour, too.
Up I-15 to Zion national park. Virgin river gorge is beautiful (along the I-15). Take I70 east to the Moab cutoff (crescent junction) and go to the Arches national Park.
Take lots of pictures and you will spend the rest of the summer, fall and into winter talking about it.
I think I'll add Zion park to the list.
Thanks.
Yeah, but watch out for driving in Vegas. About a million Southern Californians have invaded the place, and they drive like idiots on a street and freeway layout made for a population of about 250,000.
He asked nicely and this is a family friendly site.
All seriousness aside though. Hoover damn is a sight to see!