Which of the following regions is NOT a part of the Adelaide Hills?

Geelong is situated in Victoria, Australia, and is recognized for its own distinct wine region known as the Geelong wine region. It is located south of Melbourne and is famous for producing a variety of wines, including cool-climate varietals such as Pinot Noir and Chardonnay.

In contrast, the Adelaide Hills is an established wine region within South Australia, located directly to the east of Adelaide. Mount Barker, Nairne, and Lenswood are all key subregions within the Adelaide Hills, each contributing to the area's reputation for high-quality cool-climate wines. Mount Barker is known for its diverse microclimates, Nairne is noted for its altitude and development of premium wines, while Lenswood is often recognized for its exceptional conditions for growing Chardonnay and Pinot Noir.

The differentiation between Geelong and the Adelaide Hills highlights the geographic and stylistic diversity present in Australia's wine regions. Understanding these distinctions is crucial for anyone looking to deepen their knowledge of Australian viticulture.