I'm new on this forum. My family is planning a trip in June for one week. We are starting out in Las Vegas and would like to drive to Death Valley National Park, Yosemite National Park and then onto San Francisco. What are the highlights that we should not miss at both of these National Parks and how much time to do need? We plan on spending 2 days in Las Vegas and 2 days in San Francisco. Also does anyone have recommendations for hotels along the way?