The royal couple touched down at the RAAF Base Edinburgh just after 11am, before heading to the Northern Sound System to meet young musicians and performers and view a skate park display. Prince William and his wife even took to the turntables to try and spin a set.
The Duchess wore a light pink Alexander McQueen long-sleeve top and pleated A-line skirt, along with a L.K. Bennett clutch and nude pumps.
Later in the afternoon, the Duke and Duchess of Cambridge attended a reception hosted by the Governor of South Australia and the Premier of South Australia at the Playford Civic Centre.
The visit to Elizabeth comes more than 51 years after Queen Elizabeth toured the northern suburb of Adelaide, which was named in her honour.
The royals will fly back to Canberra later today to see Prince George, who has been staying in the capital with his nanny.