They say, if you've got it — flaunt it and that's just what 61-year-old stunner Christie Brinkley is doing.

The supermodel showed off her bikini bod' on Instagram while on vacation with her family on Dec. 26.

The Instagram features the supermodel, who is clad in a colorful bikini, reclining atop a surf board.

Along with the photo, the hot mom wrote, "Hat ✔️rash guard ✔️Recapture360 ✔️ Smile✔️#marahoffman for rashguard #timeless beauty @brinkleybeauty @totalgymdirect get ready for the New Year!"

On the same day as she posted the beachy snap, the blonde beauty, who was first discovered by a photographer in 1973, shared some photos of herself swimming with dolphins as well as giving out one of her "Timeless Beauty Tips" to her Intagram followers.

The mom advised, "When doing sports . . . on the water it's crucial to stop aging by protecting your skin." Brinkley added, "I start by moisturizing my face neck and chest with my own anti aging SPF And IR Defense Sunblock called Recapture 360.. Allow to sink in .. Then I like Neutrogena's range of spray on sunblocks for body..then I use a foundation with SPF 30 or higher on my face to add yet another layer of protection to my face. Look for rash guards that come treated for further sun protection and never forget your hat! This one ties to stay on even in the strongest wind!"