Coober Pedy Underground Town

Coober Pedy Underground Town escapes surface temperatures exceeding 47°C in summer, by carving homes, churches and a hotel 5 metres below ground. Over 60% of the town’s 1,700 residents live in dugouts, which maintain a constant 23°C year-round, saving $1,200 annually on energy bills. You can tour a 20-metre-deep opal mine or stay in a three-bedroom underground suite for $180 per night.