Nicole Kidman has jetted off for a girls' trip amid rumours ex-husband Keith Urban has moved on with a new partner. 

The iconic Australian actress, 58, took to Instagram on Thursday to share a raft of images documenting a snowbound jaunt to Antarctica with family and friends.

The Babygirl actress was joined by a large retinue of fellow adventurers, including her sister Antonia, 55. 

One image showed the sisterly duo beaming and huddling close as they posed amid a snow-capped mountain backdrop.

Another image showed Nicole cutting a very chic figure as she posed on the boat's deck.

She wore a crisp white puffer jacket with a pair of form-fitting black leggings and a pair of white sneakers.

Accessorising with a pair of black sunglasses, Nicole finished her wintry look with a black knitted peaked beanie.

Nicole shared another photo that showed her happily posing with an unidentified woman who the actress called 'my bestie.' 

Her eye for photography shone through in images of penguins and a breathtaking kayak perspective. 

Nicole also shared another photo that showed her deep in thought as she sat in a book lined first-class cabin on her way to her adventure vacation.

'Thank you @silversea for taking me to my 7th continent,' Nicole wrote. 'Once in a lifetime adventure with family and friends.'   

Nicole's Antarctic getaway comes after reports emerged this week that her ex-husband had moved in with rumoured new girlfriend Karley Scott Collins. 

At 58, the four-time Grammy winner is 32 years older than Collins, who opened for his 2025 High and Alive World Tour after collaborating on her 2024 duet Write One.

However, Karley hit back at the rumours, slamming them as untrue. 

On Sunday, she took to Instagram to share a screengrab of an article captioned with a cry-laughing emoji, writing: 'Y'all, this is absolutely RIDICULOUS and untrue.'

However, as recent as January 3, Karley  shared a snap of herself hugging Keith onstage while thanking 'all the incredible artists who took the boys and I on the road with you'. 

Also, when Keith celebrated his birthday on October 26, Karley shared another post gushing that he was 'kind' and she felt 'so lucky to call you a friend.'

And it was Keith who gave the Florida-born blonde the call to inform her she'd be making her official Grand Ole Opry debut in 2024.

Earlier this month, Keith sat down for his first interview after his divorce from Nicole was finalised on January 6 following 19 years of marriage.

'I'm in a different part of the journey,' the Somebody Like You singer explained on Dann Huff's podcast.

'So there's a lot of poetry in my input right now. Lots. Yeah, poetry would be in my music right now. Not rhyming poetry, but more philosophical poetry that's really profound to me.'

Nicole and Keith finalised their divorce in Janaury, entering a settlement agreement, just three months after the actress moved to end the couple’s 19-year marriage.

Court documents obtained by Daily Mail reveal the couple have agreed to waive all rights to child support and spousal support, with each parent responsible for their own legal fees and expenses.

A hearing was scheduled, but Nicole waived her right to appear in court.

The divorce decree ensures that all property, from household furniture and appliances to vehicles, bank accounts, investments, and personal items, is divided to the mutual satisfaction of both parties, with each keeping what is already in their possession.

Nicole noted that details were hashed out on September 6, before filing the petition.

Under the parenting plan, Nicole will spend 306 days a year with the children while Keith will have 59 days.

Despite both parents having reported monthly incomes 'in excess of $100,000,' the court has ordered zero dollars in child support, as agreed by both parties.

The final decree also confirms that all alimony and spousal support claims are permanently waived, and any remaining court costs will be split equally between the former couple.