Conditions.
Temperatures. Ranging from rather warm -5°C to bone-chilling -40°C.
Sunlight. 24 hours, day and night. Unless there is a whiteout. In which case the sky becomes indistinguishable from the ground in an all-encompassing white.
Animals. None, except for penguins at the coast. And definitely no polar bears. “Antarctic” literally means “opposite of the bear” in Greek.