Australia has a massive land area and with that, a wide variety of grape types grown within. The best grapes are sourced from Southern Australia in regions like Margaret River, Barossa Valley, and Coonawarra (just to name a few). Shiraz aka Syrah is the nation's most famous grape, followed by Chardonnay; both account for almost half of all plantings in Australia. Cabernet Sauvignon, Pinot Noir, and Sauvignon Blanc plantings are increasing as winemakers try to diversify. Shiraz made from older vines by producers such as Rockford and Penfolds are smokey, spicey, and generally delicious. The Clare Valley and Eden Valley are examples of top white wine regions that produce fine Rieslings.