Planning to drive from seattle to point arena, ca along the coast. Then we want to drive from point arena across country to Boston, MA. Any suggestions on the best route? We want to stop and see things like Mt. Rushmore, Yellowstone and other interesting/beautiful sites. We would be leaving Point Arena around mid october. Is it safe to drive a northerly cross country route this time of year? What should we be most aware of? We will be in a VW beetle. Two people. What preparations should we take ( things that are absolutely key). Thank YOU.