Wine Country One-Day Tours by Bus - From $75. Our Wine Country By Bus Tour starts at 9:00 AM and brings you to Sonoma Valley , the birthplace of California’s Wine Industry back in the 1850’s. Located in the Carneros Region, the first winery is famous for Chardonnay and Pinot Noir grapes and is an amazing facility that makes sparkling wines from those grapes. Your next stop, also in the Carneros, has been successful with their organically grown grapes. You will continue on to the world famous Napa Valley, where you will stop for lunch at a winery landmark which has been converted into a mall, and also has a wine tasting bar. After lunch, you will visit a third winery in Napa Valley that is the second largest, independent family-run winery in the United States, and then you will head back to San Francisco.