Princess Mary and her family are currently enjoying a "laid-back" holiday in Australia.

Princess Mary and Crown Prince Frederik

Princess Mary and Crown Prince Frederik

Denmark's princess, who is originally from Tasmania, has been on a break with her husband, Crown Prince Frederik, and their four children, 10-year-old Prince Christian, eight-year-old Princess Isabella and four-year-old twins Prince Vincent and Princess Josephine.

The brood are spending time with Mary's brother John Donaldson, who lives in Perth with his family.

But Mary and her family have left their royal backgrounds back in Denmark as they have a low key break Down Under.

Last week, the family were seen popping into the Cowaramup Bakery to grab a quick coffee. Mary stayed in the car with the children while Frederik and John headed inside to pick up the drinks.

Once inside, Frederik was more than happy to chat to employees and even posed for a selfie with café worker Deb Grey.

Her colleague Julia Meldrum told Perth Now: "She had a photo with him and she was pretty stoked about that."

Julia has been lucky enough to see the royals twice during their break, as she also served them at her other workplace, Killerby Vineyards, the day before.

She added: "They were just laid-back and enjoying their holiday."

A few days before, the royals caused a stir when they stopped in the town of Gnowangerup, 365km south of Perth, to pick up some supplies from a local supermarket.

The town's IGA owner John Rigg said of their visit: "They wandered around for about 15 minutes and then left. They were pretty incognito, they were just like a normal, everyday couple with four kids.

"By the time they got recognised was the time they got going. As they drove off she was driving, with hubby in the passenger seat and the kids in the back.

"The buzz is still going in the town. We're the shop where the royals shop now."