Down Under but in truth there is a Greater Southern Land that is further down still. This incredible place is a larger continent than both Australasia/Oceania and Europe yet has no states, no capitals, no countries. Just ice really, with seals and penguins and nematodes.
It's considered a desert (an extremely large and incredibly cold one). In fact, it's the coldest, driest and windiest continent with the highest average elevation. And, understandably, doesn't have a static population; just 1,000 to 5,000 researchers and scientists scattered throughout.
And you do start to see mention of Antarctica when you are in the southern part of Tasmania as it really isn't that far.