Quinta dos Castelares is located in Douro Superior, within the Natural Park. Production endeavours to preserve ancestral techniques combined with the latest developments in viticulture, leading to greater sustainability and respect for the environment. One of the plots contains the old vines (over 40 years old) with Douro’s main red grape varieties, especially Touriga Nacional, while the other plot, with better conditions for ripening the grapes, is home to red grapes, giving them body and structure. The white grapes are planted on the higher, cooler slopes turned to north in order to produce lighter and fresh white wines.