Princess Anne arrived in Sydney on Saturday afternoon, commencing her first Australian visit in two years alongside her husband, Vice Admiral Sir Tim Laurence.
The 75-year-old royal emerged from the airport under clear skies, accompanied by a security detail of five guards.
Dressed in a double-breasted black jacket paired with a striped cream shirt and light-coloured trousers, she acknowledged waiting journalists with a smile before departing in a private vehicle.
The couple's arrival marks the first visit by a member of the British Royal Family to Australia this year.
Princess Anne and husband Sir Timothy Laurence arrive in Australia for four day visit
|INSTAGRAM: GOVERNOR-GENERAL OF AUSTRALIA
Their four-day tour, running until November 11, will see the Princess undertake military engagements across Sydney, Canberra and Brisbane to commemorate a significant milestone for the Royal Australian Corps of Signals.
Following her airport arrival, the Princess Royal proceeded to Admiralty House, where she was received by Governor-General Sam Mostyn and her husband, Simon Beckett.
The formal welcome included a traditional ceremony conducted by Cammeraygal Elder Brendan Kerin, who performed both a Welcome to Country and a smoking ceremony in recognition of the royal visit.
The encounter between the two prominent figures generated enthusiastic responses on social media platforms.
The Princess will undertake military engagements across Sydney, Canberra and Brisbane
|INSTAGRAM: GOVERNOR-GENERAL OF AUSTRALIA
"Two impressive women right there," one observer commented on the Governor-General's official Instagram account, whilst another supporter wrote: "Two amazing women! HRH and HE the GG."
The Governor-General, who serves as Commander-in-Chief of the Australian Defence Force, confirmed she would accompany Princess Anne during Sunday's wreath-laying ceremony at Hyde Park's Anzac Memorial before attending the Royal Australian Corps of Signals' centenary parade at Victoria Barracks.
The Princess Royal's schedule begins on Sunday with commemorative services across Sydney.
At 10am, she will participate in a Remembrance Sunday Service, followed by wreath-laying ceremonies at both the Anzac Memorial in Hyde Park and Sydney War Cemetery, fulfilling her duties as President of the Commonwealth War Graves Commission.
The tour concludes on Wednesday in Brisbane
|INSTAGRAM: GOVERNOR-GENERAL OF AUSTRALIA
Later that morning at 11.30am, she will attend a garden party and ceremonial parade at Victoria Barracks celebrating the Royal Australian Corps of Signals' centenary.
Monday's programme takes her to Canberra for additional centenary-related events, including a commemorative parade.
The tour concludes on Wednesday in Brisbane, where at noon Princess Anne will attend a Remembrance Day Service and Capability Demonstration.
She will also place a wreath at the 7 Combat Signal Regiment Memorial at Gallipoli Barracks to mark Armistice Day.
Princess Anne has held the position of Colonel-in-Chief of the Royal Australian Corps of Signals since 1997, making this centenary celebration particularly significant after 28 years of patronage.
Princess Anne and Timothy Laurence married in 1992
|INSTAGRAM: GOVERNOR-GENERAL OF AUSTRALIA
The specialist military unit provides communications, electronic warfare and cyber capabilities for Australian defence operations.
Following her Australian engagements, the Princess and Vice Admiral Laurence will continue to Singapore for a two-day visit from November 12-13.
The trip, arranged at the Foreign, Commonwealth and Development Office's request, commemorates six decades of diplomatic ties between Britain and Singapore.
During her Singapore stay, Princess Anne is scheduled to meet President Tharman Shanmugaratnam and Prime Minister Lawrence Wong.
Her itinerary includes visits to the Kranji War Memorial, Airbus Asia Training Centre and Rolls-Royce's Seletar campus facilities.