Expectant Meghan put on a summer dress and set aside her high heels, while Harry ditched his usual suit for chinos as the couple lapped up cheers from Australian fans and enjoyed Bondi's surf.
Meghan joined Harry for later engagements on Sunday, with the couple attending a reception at the Pavilion Restaurant in the Domain for Invictus competitors, their families and friends hosted by Australian Prime Minister Scott Morrison.
Meghan's envisaged role on a scheduled Monday trip to Fraser Island, off Queensland state in Australia's north, was unclear, with the palace statement saying only that "the Duke will continue with the engagements on Fraser Island".
The day before, Harry made an impressive Sydney Harbour Bridge climb to fly the Invictus Games flag to officially kick off the event.
A tweet from Daily Telegraph reporter Hannah Furness revealed that while the Duchess was chatting with some of the girls from the school she told them, "My first job when I was 14, I remember taking out the trash, all sorts".
"I've been able to build more confidence and just feel proud about myself", she said.
Studies link marijuana to vehicle crashes
But Harkey admitted that the role that marijuana plays in crashes is much more hard to determine than that of alcohol. The data show legalizing recreational marijuana use has a negative effect on road safety , Harkey said .
"Ms Doria Ragland is very happy about the lovely news and she looks forward to welcoming her first grandchild". "She's made for this royal business, isn't she?"
More: Can You Guess What Prince Harry & Meghan Markle Named Their New Dog? She wants to do everything, but Prince Harry is encouraging her to pace herself. No doubt she'll be providing endless cute teddy bears and Cool Aunt Priyanka advice when the little one does get here.
The baby news was announced on the eve of the duke and duchess's first official visit outside the United Kingdom and Ireland. When Priyanka first started dating the Nick, 26, she introduced him to Meghan and Harry to get their royal seal of approval.
"She talked a lot about growing up in terms of this generation and the pressures of social media because there is so much criticism we experience", she said.
The eyes of Australia - and indeed the world - are on the couple every time they step out during their 16 day tour.