Photo from Macquarie Island Conservation Foundation
Macquarie Island is located in the southern hemisphere, in the middle of the Pacific Ocean, between New Zealand and Antarctica. It was declared a World Heritage Site in 1997 for its geological importance and is probably the most inaccessible designated World Heritage Site in the world. Its only inhabitants are scientists and birds, especially a large colony of king penguins.
Photo from UNESCO World Heritage Centre
Photo from Britannica