As part of the save the planet initiatives, Siân owns and operates a 6 hectare (15 Acre) vineyard and pasture property on the edge of the Boort township in the Mallee Region of Victoria.

The vineyard operates on an eco-friendly doctrine choosing not to use any pesticides or herbicides. The harvested grapes are sent to winemakers Welshmans Reef, to handcraft and bottle the artisan, bio-friendly wines under the Hunyani Kanbowro label.

The wines are sold by Hunyani Kanbowro to fund the Nature Reserve in Gunbower.