Why Coober Pedy Lives Underground
Deep in South Australia’s outback sits one of the most unusual towns in the world. Coober Pedy, the self-proclaimed opal capital of the world, is home to a community that has spent over a century building homes, churches, and even hotels carved directly into the earth. Here is the story of why — and what it is like to visit.
A Town Built on Opal
Coober Pedy’s story begins in 1915, when a 14-year-old boy named Willie Hutchison discovered opal while prospecting with his father’s gold mining expedition. Word spread quickly, and by the 1920s the area had become one of the richest opal fields in the world — a status it has held for over a century since.
Today, Coober Pedy still produces a significant share of the world’s opal supply, and mining remains central to both the town’s economy and its identity.
Why Go Underground?
The decision to build underground was entirely practical. Coober Pedy sits in one of the harshest climates in Australia, with summer temperatures regularly exceeding 40 degrees Celsius and almost no natural shade across the surrounding landscape.
Early miners discovered that digging just a few metres below the surface delivered a dramatic temperature difference — underground spaces stay a relatively stable 23 to 25 degrees year-round, regardless of how extreme conditions are outside. What began as practical mining shelters gradually evolved into permanent underground homes, churches, and businesses.
What an Underground Home Actually Looks Like
Modern underground homes in Coober Pedy, known locally as ‘dugouts’, are far more sophisticated than the term might suggest. Many feature multiple bedrooms, full kitchens, lounge rooms, and even underground swimming pools, all carved into the sandstone. Natural light is brought in through cleverly positioned skylights and ventilation shafts, and the rock walls themselves often display the natural colour bands of the surrounding geology.
Visitors can tour several underground homes that are open to the public, giving a genuine sense of what daily life looks like for the roughly half of Coober Pedy’s residents who choose to live below ground.
Underground Churches
Coober Pedy is home to several underground churches representing different faiths, carved using the same techniques as residential dugouts. These spaces are often strikingly beautiful, with the natural rock texture left exposed as a backdrop to traditional religious architecture and decoration.
The Breakaways
Just outside town, the Breakaways Reserve offers a striking contrast to Coober Pedy’s underground world — an above-ground landscape of colourful eroded hills and mesas that featured in several films, most notably scenes resembling an alien planet. The colours shift dramatically depending on the time of day, making it a popular spot for sunset photography.
Visiting Coober Pedy
A guided tour is genuinely the best way to understand Coober Pedy — local guides bring context to the underground homes, explain the opal mining process, and can point out details a self-guided visit would likely miss entirely.
Gekko Safari includes Coober Pedy as part of both the 4-day and 5-day Lake Eyre Spectacular tours, with a guided underground tour, opal cutting demonstration, and a visit to the Breakaways included in the itinerary.
