Explore the world-renowned Napa Valley wine region on this full-day tour from San Francisco. Visit some of the most iconic wineries in the area, including Robert Mondavi, Stag's Leap, and Chateau Montelena. Enjoy a delicious lunch at
From Wikipedia
Napa Valley is an American Viticultural Area (AVA) in Napa County, California. It was established as the nation's second, the state and county's initial appellation on January 28, 1981 by the U.S. Bureau of Alcohol, Tobacco and Firearms (ATF), Treasury after reviewing the 1978 petition submitted by the Napa Valley Vintners and the Napa Valley Grape Growers Association proposing the viticultural area named "Napa Valley."