The high profile couple, who tied the knot in St. Mark's Church in Englefield, Berkshire, last month, are reported to have flown by sea plane to an exclusive restaurant on the Sydney Harbour to start the Australian leg of their epic honeymoon.
The newlyweds previously spent ten days island-hopping in French Polynesia, where they were said to be spending time at the luxury resort The Brando on the island of Tetiaroa - once the island home of legendary actor Marlon Brando.
Starting her Aussie journey in style, 33-year-old Pippa was pictured looking effortlessly elegant in a classic black blazer which she wore over a striped A-line Kate Spade dress. The fashionable socialite finished off her look with a pair of holiday-inspired espadrilles believed to be by Spanish label Castaner.
She walked hand in hand with new hubby James, who looked relaxed in a pair of boot cut jeans and a blue jumper.
The sun-kissed couple reportedly spent three hours at lunch with friends at the Cottage Point Inn restaurant on the Hawkesbury River in Sydney's north, before returning to Rose Bay on a 20 minute flight.
The couple are reported to be staying at the Park Hyatt Hotel, which houses an eye-watering luxury $19,000-a-night Sydney Suite.
Boosting panoramic views of the iconic Sydney Opera House, harbour and bridge, the palatial 350-sqm, fourth-floor, two-bedroom Sydney Suite with sauna and fireplace, also offers a round-the-clock butler service to cater for guests' every need.
Pippa and James were spotted looking relaxed and carefree as they enjoyed the hot Sydney sun with one onlooker reporting that the bride looked "happy and smiley."
"They seemed very happy... that's my closest encounter with royalty," a harbour-local told the Daily Mail Australia.
Pippa and James were also spotted taking in the sites as they jogged through Sydney's historic Botanical Gardens.
At home in England it was back to business for Pippa's sister, Britain's Duchess of Cambridge Kate Middleton, who this week visited the Chelsea Flower Show wearing a floral green midi dress by Rochas - which has since sold out.
The elder Middleton sister met with featured exhibitors and members of the with Royal Horticultural Society (RHS), less than a day after Pippa's €1mwedding party wrapped in the early hours of Sunday morning.
Kate and husband Britain's Prince William also appeared in an exclusive behind-the-scenes photoshoot for British GQ alongside their adorable children as he spoke of his hopes give his three-year-old son and two-year-old daughter as normal an upbringing as possible.
"I could not do my job without the stability of the family," he told the mag. "Stability at home is so important to me. I want to bring up my children in a happy, stable, secure world and that is so important to both of us as parents.
"I want George to grow up in a real, living environment, I don’t want him growing up behind palace walls, he has to be out there. The media make it harder but I will fight for them to have a normal life."