Sardegna Sardegna (Sardinia) is an island region located west of the Italian peninsula across the Tyrrhenian Sea from Lazio and just south of the French island of Corsica. Its capital and largest city is Cagliari in the south. Tourists know Sardegna best for the trendy beaches of the Costa Smeralda on the northeast tip. In the wine world, Sardegna is best known for red wines made from Cannonau and white wines made from Vermentino. It has 1 DOCG, 17 DOCs (see map), and 15 IGPs. In 2015, Sardegna produced 794,000 hl (8.8 million cases) of wine, with more than two thirds of it at the DOP level and more red than white. The region’s primary grape varieties are Cannonau (35%) and Vermentino (28%).