Even though the standard wine tasting kind of sucks, (and you have to pay!), the Neibaum-Coppola Estate is one of my favorite wineries to visit. It’s kind like an amusement park. Upstairs is a museum of relics from various Coppola movies. There are great tours (if you sign up early enough in the day) to see the wine making process in action. Interested in the history of movie making? They’ve got exhibits all about it. Or just bask in the sun, whilst admiring the landscaping and the spectacular acres of grapes.