I am wondering if it is worth the trip down to either of the above mentioned places? I understand the drive to Mount Gambier is 4 hrs..or so...and Coober Pedy is about 8 hrs from Adelaide CBD. I am visiting Adelaide for a period of 7 days in November and I am hiring a car for 2 days. I will be staying in Hindley street for the 7 days, thus I have no intention to stay over at Mount Gambier or Coober Pedy.
It's my first trip to Adelaide, and I would appreciate some good advice if it is a must do when in Adelaide itinerary.