Sally: Just read your request - my social secretary (Beth) must have forgotten to pass the message along.
This is just my opinion but I feel the Hunter Valley is just another winery area which you could see elsewhere in the world.
The Blue Mountains are unique and you'll get to see a lot of Australian bush including the 'three sisters'. A must is the inclinator to the valley floor and the skyway which now has a partial glass floor - if you like that sort of thing!
The south coast is pretty and the roadway (once there) is an experience (if you're used to driving on the wrong side of the road). Michael said if you've done the drive from San Francisco to Los Angeles, this is similar but perhaps not as scenic. When we drove from SF to LA, all we could see was mist, so I'm not in a position to comment on it.
Obviously, if it's wet, anywhere you go will be disappointing, so I won't do any dancing until after your visit!
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