The 45-year-old Mission: Impossible veteran looked every inch the holidaymaker as she and Peter spent time in Avalon, just north of Sydney.
The couple were were seen canoodling together as they met with fashion designer Genevieve Smart of the label Ginger and Smart.
The couple and Genevieve looked like old friends as they spoke at the upmarket retreat town known for its picturesque ocean views.
Despite Sydney's mild weather, Michelle opted to rug up in an oversized beige jumper which she paired with a long skirt.
Proving herself sun-smart, she wore a statement wide-brimmed hat and finished her look with sunglasses and white sneakers.
Hunky Peter meanwhile wore a light black puffer jacket along with a pair of black pants and a pair of Gucci sunglasses.
The couple have been in Australia for the past few months hitting up hotspots like Melbourne and coastal Byron Bay.
Michelle and Peter met and 2000 and have been married since 2005, when they celebrated their nuptials in Sydney, Australia.
They share two children: daughter Willow Katherine, 11, and son Tommy Francis, six.
On March 23, the couple celebrated their 20th anniversary sharing a stunning portrait shot of the pair.
'Twenty trips around the sun with you,' she wrote, adding the hashtag #theloverunsdeepdownunder.