Recently Kate Upton did a bikini photo shoot in the Antarctic. Sure, seems cold for such a thing, especially since it was not related to swimming in the hot water I remember doing on my Antarctic Cruise. However, she did cover up in warm clothes mostly and only was in the bikini only for a few minutes at a time. It also appears she was always wearing some nice and warm looking white boots.
It appears this photo shoot was also related to the recent Oreo delivery to Palmer Station, as some pictures released show her with the Oreo man.