The oceanic body lying to the south of Australia is the Southern Ocean. It encircles Antarctica and is distinct from the other oceans due to its unique characteristics, including colder temperatures and nutrient-rich waters. This ocean plays a crucial role in regulating climate and supports diverse marine life, such as penguins, seals, and various fish species. The Southern Ocean also contributes to global ocean currents, influencing weather patterns. Its ecological significance makes it vital for scientific research and conservation efforts.