This wonderland is of world heritage significance. It is the only surviving grassy valley of its kind, unchanged since the time of the wallaby hunters of southwest Tasmania 18,000 ~ 20,000 years ago, when glaciers covered much of highland Tasmania.

The valley is widely recognised as one of the most important places for nature conservation in Australia. Five hundred hectares of private land sit, in the core of this conservation garden, which lies in a region now undergoing rapid development.