BUCKET LIST: Coober Pedy is an Underground City in South Australia mainly inhabited by workers at the nearby opal fields, which are the largest in the world. The residences are underground to escape the scorching heat.
The Whispering Wall in Williamstown, Barossa Valley ~ South Australia. Stand at either end of the 100 metre dam retaining wall and whispers will be clearly heard. Hubby played his iPod which I could hear perfectly at other end.