Kidman, 49, kept her blond tresses pulled back into a messy top knot, shading her eyes with a pair of oversized sunglasses. She looked comfy and cute running out of the water in a blue-and-white striped Kasana Sea shirt over her patterned bikini.
The "Blue Ain't Your Color" singer, also 49, went shirtless for their beach outing, showing off his tattoos and fit figure in a pair of black shorts, sunglasses and bracelets.
In another pic, the two were all smiles as they gazed into each other's eyes while relaxing.
Kidman and Urban are currently gearing up for the holidays, which they'll spend in Australia with their two daughters, 8-year-old Sunday and 5-year-old Faith. During her guest appearance on The Ellen DeGeneres Show earlier this month, Kidman revealed some of the items on their kids' Christmas lists.
"They sort of want American dolls, and they want candy, and they want ... they want want want," she joked.
As for what she'll get Urban? Kidman said they usually don't get each other gifts, but this year, she'll "kiss him."
See more celebrity winter beach bodies:
Winter 2016 Celeb Bikini Bodies
Winter 2016 Celeb Bikini Bodies
Wades on the water... ⛵🛳🛥🍹🍹🍹
Launching into 2017... 💙🚀 #HappyNewYear
Have the honor and privilege to be part of my beautiful bestie @stephmatson #bridetribe
Love this girl so much
Neon in Costa Rica, on my app.
Always laughing with this beauty ❤️❤️ #vacation #throwback to last night ☠️
Tree branch view...
Laughing in bathrooms with friends
Just another day at the office 🦀💦👙 @swimsuitsforall #summerofyou #swimsuitsforallsummer17
Happy 2017 from us 💚
where i belong💙
Loving you so far 2017. ✌🏻
Stripe vibes 💋
Gone to the beach ... 🐚☀️🌈
Soakin In the sun...#heaven #mexico
Mele Kalikimaka and happy holidays everyone! Sorry been away from social media over the holidays while spending quality time home with the ohana! I'm back now! Sending so much aloha and sunshine from #hawaii 🌊💋🌞
Enjoying my last few days of 2016 in Paradise. Yes yes I know, I'm back in Hawaii & I should just move here already. 📸 by the bday girl @allymaki
Needed a vacay so badly
je t'aime mon'amie
First day of vacay and this is how I feel! 🙌🏼 #happyholidays🎄
On a island wit a pretty lil hitta on her bday 🌊 @nickiminaj 🎂😁
Lord, I thank you for another year of life. #TurksAndCaicos Birthday vibes. Thanks for the 💟u guys. Right back atcha😛
HH brought me back a Lips💋Bikini. 💋💋💋💋💋💋💋💋 Yes my hair is different in this shot. And Yes I'm 53. And yes I fucking own it. 😜
👋🏼👋🏼 Hello world I'm on a secluded island and my phone just broke!!! what a perfect way to celebrate thanksgiving ☺️ don't call or text me.. just be with the people you're with! (Unless ur my dad, then call Jack for emergencies lol) Happy turkey day!!!🦃 Spread lots of love to everyone you see today.
New vlog from my week in LA LA Land is up! Link in bio 🙌
it's too cold in NYC, I want to be back here 🌺 @brooklynhawaii @jasminemullins_mua
Almost 30 and thirsty @hotelwailea
Don't be afraid to start over. It's a chance to rebuild your life & live the way YOU want. 📸by @therichardmarx #cabo 🇲🇽#50birthday #celebration 🙌🏼
Caught this today spear fishing!!! 🐟🐠the only reason I don't feel terrible is because I'm eating it for lunch 🌮🌮
Caboooo it's lit😉😈🙆🏻
This is living
Having a terrible time
Just us girls ... having fun ☀️💦💕 #foreveronvacation #Dubai #alebyalessandraswim
#samesamenotdifferent made it to the Caribbean. Get your tee now!
13 going on 30 .... @jennalynnrenee @alyssafgreene @e2homesltd @slbenedon @karibeeander 📷 by @tommycole
Flashback - harbour island -thank goodness it's Friday. @superelixir ! Run into @nordstrom to get some @ellemacphersonbody lingerie.
Not tossed by the waves or drawn by the breeze. Master Dogen. #free
Two of my three in one photo 💙💦☁️ miss u Musette hummingbird nightengale viola violet moonbeam
Shanina sells seashells 🐚🐚 by the seashore 🌊🔆 Bikini @shemademe
Thankful for the fans who came to my concerts in Honolulu last week💖💖 Getting some extra island time at @grandwailea before going back to work!