Bordeaux Supérieur is an appellation which covers the whole of the Bordeaux region, it is a title in its own right, specifically covering both red and white wines. It is classified when it has achieved a higher natural level of alcohol and lower yields than basic Bordeaux. Bordeaux lies in the southwest of France and in general has a moderate maritime climate with varying levels of influence from the cool Atlantic Ocean and the Rivers Garonne, Dordogne and the Gironde Estuary. It is a region that sees a range of challenges bringing variety each vintage.