We are off to San Fran for a few days in late September for our first visit and hoping to get some advice. We are thinking of hiring a car and heading to napa valley for the day to visit some wineries and do some tastings. We have no experience with US wines so does anyone have a recommendation of good ones to visit, good reasonably priced Cabernet would be the priority, good views, good lunch location? Also any recommendations of bars or tasting rooms in San Fran would also be greatly appreciated. Thinking of going to Auberge for lunch so recommendations in that areas would be appreciated. I also like bubbly.