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68-year-old Christie Brinkley made a splash in a blue swimsuit: “Grateful”

Supermodel Christie Brinkley, 68, shared a photo of herself frolicking in the surf on a tropical beach.  (Photo: Dia Dipasupil/Getty Images)

Supermodel Christie Brinkley, 68, shared a photo of herself frolicking in the surf on a tropical beach. (Photo: Dia Dipasupil/Getty Images)

Christie Brinkley soaks up the sun on her private estate in the Turks and Caicos Islands.

The 68-year-old supermodel shared a series of snaps from her tropical getaway, showing the star and mom-of-three paddling the surf in a pale blue swimsuit.

“Grateful!” Brinkley captioned a photo of herself looking up at the clouds wearing a beach hat around her neck and black sunglasses.

Brinkley shared a series of other snaps from her exotic vacation, including a healthy meal she called “eating a rainbow.” Filled with tropical fruits like mango, pineapple and papaya, as well as chia seeds and coconut milk with matcha turmeric drink, Brinkley toasted her commitment to a healthy lifestyle.

“Here’s to your health!” she wrote in an Instagram story that showed a napkin from Lucky House, Brinkley’s waterfront estate at COMO luxury resort Parrot Cay.

Christie Brinkley shares her rainbow food.  (Instagram/Christie Brinkley)

Christie Brinkley shares her rainbow food. (Instagram/Christie Brinkley)

Brinkley is no stranger to enjoying the sand and surfing or posting swimsuit photos on social media. Back in January, she shared a selfie in a black bikini worn underneath a cream knit cape.

Of course, her willingness to share her life on social media comes with some criticism. Last month, Brinkley opened up about ageism and “some of the ways we’re constantly categorized because of our age” in a passionate Instagram post.

“The expression ‘aging gracefully’ should refer not to looks, but to the attitude and energy that a person offers to the world,” she wrote. “Looking good is a by-product of feeling great and having a heart full of good intentions and good energy in the world!”

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