Napa Valley in California is one of the world's most celebrated wine regions. The valley lies northeast of San Francisco Bay, benefiting from a Mediterranean climate with warm days and cooling Pacific breezes each evening. Cabernet Sauvignon is the dominant grape, producing intense, rich wines with dark fruit, cedar, and often notable oak spice. Napa's appellation system is finely divided — sub-regions like Rutherford, Oakville, and Stags Leap District each have distinct characters. Napa wines use grape-led labeling, meaning the variety is prominently stated on the label.