Ten wineries will take you through a tasting of their Petite Sirahs in an intimate seminar setting: Barr Estate Winery, Berryessa Gap Vineyards, Cantara Cellars, Clayhouse Wines, Graveyard Vineyards Gustafson Family Vineyards, Red Soles Winery, Robert Biale Vineyards, Le Cuvier Winery, Vina Robles Winery. Only 100 tickets will be sold.