Which two GI regions are shared between Victoria and New South Wales?

The correct answer identifies the Murray Darling and Swan Hill regions as the two geographical indications (GIs) shared between Victoria and New South Wales. This is significant because both regions are collaboratively recognized for their contributions to the Australian wine industry, particularly due to their favorable climates for viticulture. The Murray Darling region is notable for its vast plantings and diverse wine styles, benefiting from irrigation sourced from the river, while Swan Hill, located near the confluence of the Murray and the state border, also offers a range of varietals and has a growing reputation for quality wines. Understanding these shared regions emphasizes the interconnected nature of wine production across state lines in Australia and highlights the unique terroirs that contribute to the character of wines produced in these areas.

The other options involve regions that are either entirely within a single state or do not overlap between Victoria and New South Wales, making them incorrect in the context of the question.