Just wanted little bit help here, I am a foreigner and planning to visit CA for business followed by a 20 days vacation. I am going to stay in SF for 5 days due to business then the vacation will start with 4 days in LA then 4 days in Las Vegas. So i will be left with 12 days and I really don't know where to go to. So any suggestions? just a note you will find that i have spend like 14 days in crowded cities so I don't mind seeing the wonders of mother nature for the rest of the vacation.