Chateau d'Agassac Chateau d'Agassac The advantages of using a private wine guide in Bordeaux are tremendous. With over 300,000 acres of Bordeaux vineyards to cover, wine enthusiasts will benefit greatly from narrowing down the scope of a visit to France's most prestigious wine country. Private wine guides, like Dominque Garcia of Les Sommeliers et Les Vignerons (The Sommeliers and the Winemakers) customize itineraries to fit the needs of individuals and groups. Here are some of the ways guides make a visit to Bordeaux easier.