Its inaugural and most enduring project was the establishment of the Wirrimbirra Sanctuary, gifted to the National Trust of Australia (New South Wales) in 1965.
Created in the 1960s by Thistle Stead to preserve the native 'Bargo Brush', a thick dense brushland covering the Bargo Plateau.
It was a haven for escaped convicts during early settlement and a hazard for travellers heading to wards the rich grazing grounds of the Southern Highlands, and promote education and propagation of Australian native plants, Wirrimbirra operates as a flora and fauna reserve, native plant nursery, education and research centre, listed on the NSW State Heritage Register.
Wandering the paths of the sanctuary, including the Fauna Protection Area, for encounters with endangered species and plants from around Australia.
You will also see wallabies, kangaroos, emus and maybe echidnas, possums, a wide variety of birds and other native animals in natural habitats.