The How to Talk to Girls at Parties actress was recently spotted at Balmoral Beach in Sydney, Australia, looking fit and flawless while taking an early morning dip in the sea.
Kidman, 48, went makeup-free and rocked an itty bitty floral two-piece, which perfectly showed off her toned tummy, rock-hard arms and slender legs.
The ageless beauty was joined by her mother, Janelle Ann Kidman, who fully submersed herself in the water for a relaxing mother-daughter swim session.
"It is such a crazy good album," Kidman -- who Urban says inspired the album -- told ET's Sophie Schillaci. "I've been living with all the songs -- and even the songs that didn't make the album. I've seen the work he puts into it and the love. He's a musician, so every little tiny detail is all him, and I love that. I love that he's passionate about his music."
The adorable duo will be celebrating their 10-year wedding anniversary in June, and clearly, they're still smitten.
When ET chatted with the couple at the SAG Awards back in January, they revealed their secrets to keeping their marriage alive after all this time.
"Just want it more than anything," Urban, 48, explained. "That's it, isn't it?"
"Yeah, prioritize it," Kidman added. "Also, as much as we love each other, we really like each other. I'm speaking for myself, but that is a huge part of being married. Always, the first person I want to share anything with is him. It's true."
To hear more on their admirable relationship, watch the video below.