I am brand new to this forum. I am impressed about the magnitude of information here, great!! I have a similar trip in mind this summer; San Francisco "full circle" whereby we as a family, also in a RV, would like to travel from SF to Yosemite, to Las Vegas, to Grand Canyon, Flagstaff, Los Angeles and back along the coast to SF (as our "minimum desire"). Is such a trip in your opinion doable in 18 full days "on the road"? What could you recommend as a best route? I am starting my planning now and have to start somewhere I guess. Many thanks in advance.