photo credit: Deon Maritz

Of course you do!  The locals always know the best wineries and restaurants in Napa because we live, eat, and drink here every day!  If you are somewhere else in the world and want to figure out which places the locals frequent, your best bet is currently Yelp.  You can see where the person is from that left the review.  Search some of the most common wineries and restaurants and sort the results by the reviewers location to speed things up.  Plan all of this into your itinerary for the best Napa wine tour.  Many of the tour companies have deals with the restaurants and wineries in the area to get a bonus for bringing them customers, this results in hordes of people everywhere you go.  Plan your own and see much more of the valley than you would have otherwise.