On three RV hire trips the only site that we should have booked was a state campsite on North Rim Grand Canyon due to popularity but the rest of the time we just turned up on KOA sites .
If you have booked during a busy holiday period then booking might be wise.
Thank you Larry. That is really helpful. If you think of anything else, however trivial, the information will be most welcome. What did you do about mobile phones /sims. Presumably we will need these to book campsites in advance or to sort other problems.
Thank you again. What did you do about sat navs?
We want to stay the last because want to experience Las Vegas as may not have time on way out.
Any further info greatly appreciated. Thank you