An ancient nearby volcano has carved this unique site into one of Victoria's more robust horticulture areas. The earth is composed of black volcanic top soil, flecked with small pieces of basalt (bluestone), under which is a layer approximately 6 inches thick of very porous tufa, which was formed as ash deposits from the near by volcano. This is then layered over decomposed limestone and into yellow sand.

This unique land has been the production hub of potatoes and onions for decades, tilled and turned by Irish settlers, who found Killarney resembled the countryside they left behind in the 1800's.

The vineyard is located on a slight North face of an open plain, midway between the ancient inland sand dunes formed thousands of years ago, and the roaring Southern Ocean. The site has been complemented by the re-establishment of native shelter belts, to not only provide refuge to the native fauna, but also provide some relief from the ever present southern blast off the ocean.