Only getting better with age!

Christie Brinkley rang in the 2015 New Year alongside her three children on the islands of Turks and Caicos. And family time turned into a photo shoot—one that produced this incredible shot of the supermodel!

Just one month away from turning 61, a grinning Brinkley took a dip in the crystal clear Atlantic Ocean clad in a teeny, triangle-top bikini—a moment she captured and shared via her Instagram account on Sunday, Jan. 4. The fun photo showcased Billy Joel's ex's incredible physique, still svelte nearly 40 years into her career as one of the world's biggest models.

"Heaven, I'm in Heaven," Brinkley captioned the image, punctuating the words to the 1935 hit, "Cheek to Cheek," with music notes.

But the hot mama to Alexa Ray Joel, Sailor Brinkley-Cook, and Jack Brinkley-Cook wasn't the only one putting her bodacious body on display! Alexa Ray, 29, also posed for a sexy bikini shot in a leopard-print two-piece, which was also shared on her proud mom's account.

Eager to promote her daughter's burgeoning singing career, Brinkley posted the image alongside a note about Alexa's upcoming performance: "My Exotic Beauty @alexarayjoel be back performing at the Legendary #cafecarlyle this February!"

Between sunny days lounging on the beach, the family of four also stopped to watch—and participate, in Jack's case—some soccer, which the former Sports Illustrated cover girl also chronicled on her Instagram page with a cute selfie alongside Sailor. "Selfie with Sailor #Victory #afterparty #soccer #happynewyear," she wrote.

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