Where was this photo taken?

I came across this photo in my mother's album and am trying to determine where it was taken.  I don't recognize the houses/buildings in the background or the bus coming along this road.  I am hoping someone can identify this location.

The photo shows, from left, Maria "Cissy" Huysman (daughter of Ugo Gonella and Grace Murray), my mother's eldest sister Phyllis (D'Almada E Castro) dos Remedios, and my mother Belle Reed.  It was taken sometime in the 1970s.  Cissy and her husband, Jan, lived in a house on Blue Pool Road as I recall, but this area seems a bit more remote.