KIM Kardashian looked incredible in a sexy thong swimsuit during a family boat trip in Costa Rica.

The reality telly star, 38, showed off her enviable figure as she took to the high seas with her nearest and dearest.

Kim Kardashian looked incredible in her thong swimsuit on a family boat trip in Costa Rica
Kim Kardashian looked incredible in her thong swimsuit on a family boat trip in Costa RicaCredit: Splash News

Kim was joined on board by sister Kourtney Kardashian, Scott Disck and all their children.

The superstar siblings were even seen jetting around on a jet ski, and even Scott was having a great time with the family.

The sisters and Scott, 36, have been joined on the trip by Kourtney and Scott’s children, Mason, 9, Penelope, 6 and Reign, 4, as well as Kim’s children, North, 6, Saint, 3.

This isn’t the first time that Scott- who is currently dating Sofia Richie – has joined in on the sister’s family trip in recent months.

She was joined by her sister Kourtney Kardashian

She was joined by her sister Kourtney KardashianCredit: Splash News

Kourtney's ex, Scott Disick, was also on board

Kourtney’s ex, Scott Disick, was also on boardCredit: Splash News

Kim and Kourtney had their kids with them

Kim and Kourtney had their kids with themCredit: Splash News

Everyone looked like they were having a great time

Everyone looked like they were having a great timeCredit: Splash News

In April this year, the father of three enjoyed a holiday to Bali with Kourtney, Kim, Khloe and the ‘Klan’.

The former couple have previously spoken out about their co-parenting journey, with Kourtney posting a photo of the pair, confessing how proud she was of their relationship.

She wrote: “I’m so proud of the place we’re at as parents to our children now and all the work we’ve put into getting here.”

Scott also confessed on Kourtney’s lifestyle site, Poosh: “I’d never want [her] to miss out. … We decided we wanted our kids to have these memories together as a family.”

were even seen jetting around on a jet ski, and even Scott was having a great time with the family

were even seen jetting around on a jet ski, and even Scott was having a great time with the familyCredit: Splash News

Kim kept her kids close as she set sail on the yacht
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Kim kept her kids close as she set sail on the yachtCredit: Splash News

Kim looked like she was having a whale of a time

Kim looked like she was having a whale of a timeCredit: Splash News

And it seems the pair have even got to a point in their relationship where they feel comfortable spending time with each others partners.

In December last year Scott posted a photo of himself sitting in between his ex and his girlfriend Sofia, 20.

Meanwhile, Kim has been busy making waves herself as she recently posed for Vogue Japan.

The reality star continues to show off her versatility in the magazine’s August issue as she poses in a bondage-inspired dress, futuristic mask and pink silky wrap – which she penned was her “dream come true”.

Kourtney appeared to have mastered the jet ski

Kourtney appeared to have mastered the jet skiCredit: Splash News

Kim gave onlookers a good view of her famous derriere

Kim gave onlookers a good view of her famous derriereCredit: Splash News

She wrote on Instagram: “3 VOGUE JAPAN COVERS!!!

“This was an absolute dream come true for me! Styled by the legendary @anna_dello_russo and shot by @luigiandiango Make Up @makeupbymario Hair @chrisappleton1 @voguejapan@kkwbeauty”.