My wife and I are planning a trip from LV-DVNP( 3 nights)-Palm Springs(2 Nights)-San Diego(3 Nights)-LA(3 nights)-Santa Barbara(1 night) sometime next year. We are in our mid 60's and in fairly good physical condition but not really interested in long or strenuous hikes; just want to enjoy the beautiful scenery of the areas. Our plan is to fly into LV, for convenience only, then visit the listed areas by rental car, leaving from LAX. Our time in each area could vary by a day or two if necessary, but our main concern for now is the best time of year to balance the temperature extremes. We are currently thinking about early April or late October. We would appreciate any recommendations regarding our itinerary and timing.