Kate Upton: Bikini Photo Shoot in Antarctica!

Kate Upton heads into Madison Square Garden to watch the New York Knicks take on the Houston Rockets on Monday night (December 17) in New York City.

The 20-year-old model recently returned from a 10 day cruise from Argentina to Antarctica, where she participated in a photo shoot wearing just a bikini in under 35 below zero degrees temperatures!

Kate only faced the cold for a few minutes at a time before covering up in a long fur coat while posing in front of icebergs and penguin-filled island. Check out the photos on TMZ!