The Amtrak station in San Luis Obispo (SLO) is one of my favorite time portals. How about hopping aboard a Period Pilots time travel flight to... visit the Southern California citrus groves in 1933?
Your time travel tour allows you to checkout acres of lovely scented orange and lemon trees beneath the towering San Gabriel Mountains before the development that followed World War II. Take a Model T over to Malibu for a spot of horseback riding along the beautiful uncrowded shoreline. Your day will end with a campout on the slopes of that grand patriarch of mountains Old Baldy.