Christie Brinkley Shows Off Her Toned Tummy on Vacation

These pics are giving us total Insta-envy!

Forget the snow! Christie Brinkley spent her holidays soaking up the sun.

The 61-year-old supermodel spent her Christmas vacation in Turks and Caicos alongside her daughter Alexa Ray Joel, 29, and son Jack Brinkley-Cook, 20, and posted amazing pics to her Instagram of the trip.

WATCH: 61-Year-Old Christie Brinkley Shows Off Killer Figure in Tiny Bikini

Brinkley shared a snap of herself flaunting her toned abs and long legs while paddleboarding with her family on the beach. The Timeless Beauty author made sure to protect herself from the sun with a Mara Hoffman Supernova Black rash guard and, of course, a hat.

Proving again that age is just a number, Brinkley stayed active on her trip, from riding bikes to swimming with the dolphins.

I like to hang out with really intelligent beings on porpoise,” she joked on a photo of her swimming with a dolphin, adding, “Jojo is actually a dolphin, not a porpoise, and a famous and friendly one at that!”

Want to look like Brinkley in your 60s? She offers one very big piece of advice: Sun protection.

WATCH: Christie Brinkley Reveals Her Shortcut for Getting an 'Instant' Facelift Without Needles

“When doing sports on the water it's crucial to stop photo aging by protecting your skin,” she captioned a photo of herself, smiling. "I start by moisturizing my face, neck and chest with my own anti-aging SPF and IR Defense Sunblock called Recapture 360.”

Brinkley spoke with ET back in September about beauty secrets that have kept her looking young and radiant.

“The key is to not stop moving," she explained in the interview. To see what other hints she shared, watch the video below.