A frigid body of water bordering Antarctica is the subject of today's Geo Quiz.

It's the destination of millions of marine visitors every southern summer, and more than a few humans as well.

Science reporter Dan Grossman is among this year's visitors. He's on his way to the South Pole and right now is literally floating on our Geo answer.

Dan Grossman: "I'm in the Ross Sea, just off shore from McMurdo Station."

and the Ross sea is the answer to our Geo Quiz.

Listen to the report

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