Here's a question you probably didn't expect to think about today. Can Christie Brinkley walk on Watch An Enticing Invitation Onlinewater?

The 63-year-old model is appearing in this year's Sports Illustrated swimsuit issue alongside her daughters, Sailor and Alexa. Brinkley posted a photo from her shoot to Instagram on Monday, and the internet had primarily two reactions: 1) Christie Brinkley looks so good and 2) How is Christie Brinkley standing on that water?

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No, seriously. People were very impressed.

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To crack the case, though, all you have to do is read Brinkley's Instagram caption. "My kids think I walk on water," she wrote, "so let's not mention the apple box concealed just under the surface."

OK. We won't. What apple box?

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