During what Russian circumnavigation of the world was the discovery of Antarctica made?

During the third voyage around the world, it was discovered. It is worth knowing that Antarctica is the coldest continent on our planet. The area of this continent is approximately fourteen million square kilometers. Of course, here is the coldest ridge on our planet, the temperature on it exceeds minus ninety degrees. But in some areas of this continent, there has been no rain for more than two million years. It is also worth knowing that there is not a single reptile here.