Which of the following is a GI in the Limestone Coast?

Coonawarra is recognized as a Geographical Indication (GI) within the Limestone Coast region of South Australia. GIs are designated areas known for producing particular varieties of wine, reflecting the unique terroir and climatic conditions of the region.

Coonawarra is especially famous for its terra rossa soil, which is rich in minerals and ideal for growing premium grapes, particularly Cabernet Sauvignon. The distinct climate created by the surrounding limestone ridges also plays a crucial role in producing high-quality wines.

In contrast, Barossa Valley, Margaret River, and Hunter Valley are all significant wine regions in their own right, but they are not part of the Limestone Coast GI. Barossa Valley is known for its Shiraz and rich, full-bodied wines, while Margaret River is celebrated for its diverse range of varieties, particularly Cabernet Sauvignon and Chardonnay. Hunter Valley is one of Australia's oldest wine regions and is known for its Semillon and Shiraz. Each of these regions has its own GI designation but does not overlap with the Limestone Coast classification.