Koonalda is not an easy place to enter, and was never meant to be. The cave opens through a vast doline, a steep-sided sinkhole some 80 metres across, its floor falling away around 80 metres below the plain on a slope of tumbled boulders. Beyond the daylight zone, the cave runs on in horizontal passages totalling more than a kilometre and a half, with chambers reaching 50 metres high and dark lakes lying in the deepest reaches. The ancient miners came for the flint, the hard stone locked in horizontal veins through the friable limestone, prized for making tools. But they went far beyond what mining alone required, deep into the lightless passages, and there they made the flutings. Reaching that wall meant carrying fire into the black, trusting the route back. The effort tells us this was no casual act.

Western archaeologists came to Koonalda only in 1956; the cave had been excavated through the 1960s by Sandor Gallus, whose trenches revealed worked flint, charcoal, bone tools and the bones of animals layered deep in the cave floor. Dating the deposits has yielded ages stretching back beyond twenty thousand years, with some estimates reaching far older still. For a long time, scholars badly underestimated how long people had lived on this continent; Koonalda was among the discoveries that shattered those assumptions and pushed the human story of Australia deep into the Ice Age. The finger flutings are not pictures of anything. They are gestures, the direct trace of a living hand moving across stone in the dark, preserved for hundreds of centuries. Few things connect a modern visitor so immediately and so physically to a person who lived in the Pleistocene.

It would be a mistake to speak of Koonalda only in the past tense. The cave is sacred to the Mirning people and the Far West Coast peoples, whose connection to this country was never broken and continues today. Australia has recognised the site's significance in law for decades. It was declared a prohibited area in 1968, listed on the South Australian Heritage Register in 1993, and inscribed on the Australian National Heritage List in 2014. Access has long been tightly restricted, both to protect the fragile markings and to respect the wishes of the traditional owners. The flutings made by ancestors in the deep dark are, for their descendants, a thread of continuity reaching back across an almost unimaginable span of time, a tangible link between the living and the ancient.

In June 2022, someone forced their way in. Vandals breached the barriers protecting Koonalda, made their way deep into the passages, and scrawled graffiti across walls that hold markings more than twenty thousand years old, including the words "don't look now, but this is a death cave." The damage was discovered and reported that December, and it cannot simply be cleaned away; removing the graffiti would destroy the ancient art beneath it. The desecration caused national grief and anger. Mirning Elder Uncle Bunna Lawrie spoke of the deep sadness and hurt of his people. The act appeared deliberate, carried out far inside a cave reachable only with real effort. In March 2023 the Australian Government committed funding to improve the cave's security, including cameras. Nothing can undo what was done. But the wound, and the response to it, made plain how much this place means, and to whom it belongs.