When founder Al Brounstein used to host what we would now call wine club parties at Diamond Creek Vineyards, he wouldn't serve any Diamond Creek wine. But he would, through a lottery, offer one lucky person the opportunity to buy a magnum. While his son isn't nearly as stingy with the precious juice, it still isn't exactly the type of place you roll up to and hold out your empty stemware. But if you're polite and plan ahead, visiting what was one of the first wineries on Diamond Mountain (and to this day one of the very few) and one of if not the first estate to make single vineyard wines in Napa Valley is well worth the effort. The rambling estate that includes the three famous vineyards as well as a meandering natural springs is one of the loveliest in the valley. And the wines, well, they speak for themselves.