Kris Smith's ex Maddy King escapes to Costa Rica as the Myer ambassador prepares to welcome a child with his new girlfriend Sarah Boulazeris

Kris Smith and his girlfriend Sarah Boulazeris are set to welcome their first child together in December.

And as the countdown to the birth begins, the Myer ambassador's ex-girlfriend Maddy King has flown overseas.

Maddy, who dated Kris for four years until 2016, is currently enjoying a tropical getaway in Costa Rica.  

Getting away from it all! Kris Smith's ex Maddy King has escaped to Costa Rica as he prepares to welcome a child with his new girlfriend Sarah Boulazeris. Pictured on Monday in Montezuma

Getting away from it all! Kris Smith's ex Maddy King has escaped to Costa Rica as he prepares to welcome a child with his new girlfriend Sarah Boulazeris. Pictured on Monday in Montezuma

On Monday, Maddy shared a photo of herself in a red dress in the remote fishing village of Montezuma, popular with budget-conscious tourists.

'A brewery in a butterfly garden... What dreams are made of,' she captioned the snap.

In another picture, she showed off her luxury accommodation at an eco-friendly yoga retreat.

How's the serenity! In another picture shared to Instagram, Maddy showed off her luxury accommodation at an eco-friendly yoga retreat

How's the serenity! In another picture shared to Instagram, Maddy showed off her luxury accommodation at an eco-friendly yoga retreat

As Maddy gets in touch with her spiritual side, Kris and Sarah are eagerly awaiting the birth of their first child together in December. 

Despite being heavily pregnant, fitness enthusiast Sarah is maintaining her workout regimen and sharing regular gym selfies to Instagram.

She captioned one recent update, 'Bump's back in the studio this week #31weeks'. 

Nesting: As Maddy gets in touch with her spiritual side, Kris and Sarah (pictured) are eagerly awaiting the birth of their first child together in December. The pair began dating in 2017 after meeting at a Sydney gym, and announced her pregnancy in July

Nesting: As Maddy gets in touch with her spiritual side, Kris and Sarah (pictured) are eagerly awaiting the birth of their first child together in December. The pair began dating in 2017 after meeting at a Sydney gym, and announced her pregnancy in July

Kris and Sarah spent most of September on a babymoon in Mykonos and London.  

The pair began dating in 2017 after meeting at a Sydney gym, and announced her pregnancy in July. 

The former rugby player already shares a son, eight-year-old Ethan, with his former partner Dannii Minogue, 46.

'Bump's back in the studio': Despite being heavily pregnant, fitness enthusiast Sarah is maintaining her workout regimen and sharing regular gym selfies to Instagram
'Bump's back in the studio': Despite being heavily pregnant, fitness enthusiast Sarah is maintaining her workout regimen and sharing regular gym selfies to Instagram

'Bump's back in the studio': Despite being heavily pregnant, fitness enthusiast Sarah is maintaining her workout regimen and sharing regular gym selfies to Instagram