Paris Hilton and son Phoenix swimming in Hawaii. PHOTO:

PARIS HILTON/INSTAGRAM

Paris Hilton is having some fun with her water baby.

On Sunday, May 26, the DJ and heiress, 43, shared a TikTok video of herself swimming with her 16-month-old son Phoenix Barron during a Hawaii vacation.

“Go!,” Hilton said at the beginning of the clip as she carried Phoenix, who wore a blue sun hat and matching armbands.

The mother of two — who wore a black bikini and black netted top — then jumped up and down in the water as Phoenix splashed his hands, before going under a tunnel in the outdoor pool.

“There we go under the tunnel, kicking,” Hilton said as Phoenix flashed a beaming smile.

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Phoenix then squealed excitedly in his mother’s arms as her husband Carter Reum shouted, “Yeah!” from behind the camera.

“Adventures with Baby P 🐠,” Hilton captioned the adorable TikTok Video. She also shared the clip on her Instagram Stories with the caption, “Reliving my childhood at @grandwailea @waldorfastoria @hilton.”

Paris Hilton and son Phoenix.

PARIS HILTON/INSTAGRAM

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The Paris in Love star later shared another video from the family’s vacation on TikTok of herself on the beach with her baby boy.

Paris Hilton, son Phoenix and daughter London.

PARIS HILTON/INSTAGRAM

Dressed in green and turquoise outfits, the mother and son smiled and giggled before taking a stroll across the sand. “Paradise with Baby P 🌊👱🏼‍♀️👶🏼🌴🌊,” she captioned the clip.

In addition to Phoenix, the businesswoman is also the mom to daughter London with Reum, also 43, whom she welcomed in November 2023.