Over the last 20 years, Argentina has exploded onto the international wine map, and its reputation for producing fine wines continues to grow. Argentine wines are good and they just keep getting better. One of the reasons is the desertlike climate in the wine-growing regions; controlled irrigation and the huge variation between daytime and nighttime temperatures make for excellent wines. Warm days encourage sugar production and help the grapes grow thick skins. Cool nights ensure good acidity levels and low humidity means bugs and fungus aren’t a problem. Mendoza is Argentina’s premier wine region, but the provinces of San Juan, La Rioja and Salta also produce excellent wines. Mendoza is known for its malbec, while San Juan is famous for its syrah and Cafayate for its torrontés, a crisp, dry white wine. Wine tourism is a growing industry; each of the following regions is worth a visit for any oenophile.