Caymus has a signature style that is dark in color, with rich fruit and ripe tannins â as approachable in youth as in maturity. Since its founding in 1972, Caymus has become renowned as a consistent leader in the production of Napa Valley Cabernet. Grapes for this wine are farmed in a range of Napa’s sub-appellations â from Coombsville to Calistoga â with fruit from the valley floor creating lushness and the hillsides providing backbone.