Driving the coast! PCH to San Fransisco & back to the desert

Happy Holidays!  We are heading up & down the southern coast, from palm springs to san fransisco & back!  May not be exciting to you, but we are STOKED!!  Please, any one that has done this that may have words of wisdom, chime in.  It's a week, and seems like enough time to get a real sense of the PCH.  Maybe not.  We're reaching out to anyone that might by chance be doing the same thing or has done it & has irresistable advice or recommendations.  Driving a 24' Tioga dark gray with a golden retriever at the helm.  Peace!