So many amazing vineyards! You can't go wrong, but some of our favorites are: Stag's Leap (put Napa on the map, amazing wines and fantastic views), Silver Oak (great reds, a nice tour), Louis Martini (one of the oldest vineyards in Napa - go to Dean and Deluca oppositie the vineyard and have a picnic lunch before or after your tasting). Napa is about 2 hrs drive north of San Jose, but well worth the trip. If you stay and go our for dinner we loved Bistro Jeanty in Yountville, and Celadon and Angele are both in Napa town and delicious. We usually stop at ABC (Alexis Baking Company) for breakfast before starting drinking. They have AMAZING pancakes, and a string quartet on Saturday mornings.