Half Moon Island is just off the coast of the Antarctic Peninsula. It is also home to a substantial chinstrap penguin colony. The island is a bit farther north than most of the peninsula, and so there is ice there. Half Moon Island is the perfect place to wander into the heart of a vast penguin colony, plunk yourself down on the ground, and watch these adorable critters for hours. The penguins will come up to you to check you out. Then they will go about their day pestering each other, feeding their young, stealing rocks from each others' nests, and skiing. In mid- to late-January, they should be out of the nests and walking around.
The main thin to do in Half Moon Island, Antarctica is watch the two types of penguins, the chinstrap and the gentoo. Both these types of penguin inhabit this island and watching them is true entertainment.