The vineyards of the San Martín subzone Food and drink · Navas del Rey, Sierra Oeste, Madrid Image of Navas del Rey, not of the place itself. The municipality belongs to the San Martín de Valdeiglesias subzone of the Vinos de Madrid Denomination of Origin, the westernmost and most granitic of the four, made up of only nine districts between the Alberche and the Cofio. Photo: M.Peinado from Alcalá de Henares, España (CC BY 2.0) What to see and do in Navas del Rey