In the opal town of Coober Pedy, where much of daily life happens below ground to escape the desert heat, this bed and breakfast carries the idea into its rooms: one, two and three-bedroom apartments dug into the earth, cool year-round, with natural light and ventilation drawn down through air shafts that echo the old mines. Continental breakfast is included, and self-contained kitchens and living areas suit longer outback stops. Independently run, with covered parking, courtesy car and airport transfers.