The four country tour officially begins in Sydney tomorrow.
A commercial flight believed to be carrying the Duke and Duchess of Sussex has landed in Sydney for the start of the couple's first official royal tour.
"I have to say it's really, really a full packed visit, they will be doing so much here", Ms Berejiklian told Nine News.
They're expected to fly from Toronto to meet Prince Harry and Markle when the tour launches at the Sydney Opera House on Tuesday.
The pair were then driven to Admiralty House in Kirribilli via motorcade.
Jessica was one of just three people, along with Meghan's mum Doria and Harry's mate/Soho House consultant Markus Anderson, to join the Suits actress and Harry in the royal box at the Invictus Games.
The couple were accompanied by the then baby William for the visit, which saw the trio visit Alice Springs, Uluru/Ayers' Rock, and Sydney.
The couple will then attend an official reception at Government House, before visiting a social enterprise cafe, visiting a primary school and then catching a tram to South Melbourne beach where the will meet local volunteers.
The couple have been promoting the Invictus Games ahead of their Sydney trip.
The duke and duchess will learn about environmental challenges while in Wellington, visit a charity which supports children with parents in prison, and meet members of the public in Auckland and Rotura.
The Duke of Sussex will follow in his mother and father's footsteps when he touches down in Australia with his new bride for their first official tour together.