Catherine, Duchess of Cambridge has taken advantage of the royal couple's designated day off by playing with young Prince George on the lawns outside Government House.
The Duchess left the main entrance of Government House late Monday morning and walked towards the lake with her son in the stroller.
Baby George rides on Kate's shoulders
The Duchess of Cambridge plays with toddler prince George in the grounds of Government House in Canberra before leaving him with his nanny.
The pair eventually returned to the lawns and enjoyed close to 20 minutes of mother-and-son time.
Security seemed light, with personnel giving the Duchess time to explore the grounds on her own accord.
Once on the lawns, she took the young prince out of the stroller and gave him a ride on her shoulders. She played with her son by throwing him in the air.
Earlier, the Duke and Duchess enjoyed an autumn stroll through the grounds of Government House, swapping their formal wear for more casual attire.
Dressed in jeans, the Duke and Duchess were spotted walking hand-in-hand through the well manicured Yarralumla lawns on Monday morning.
There is no word on whether they ran into some of the native wildlife at Government House, although an encounter with the kangaroos on the lawns of Government House in Canberra seems par for the course for any visiting royal.
Government House has been the routine home for travelling royals in Canberra, with Denmark’s Crown Prince Frederick and Princes Mary visiting the 123-year-old building in 2005.
Young George’s great-grandmother Queen Elizabeth II signed the Australia Act 1986 at Government House, which severed the final constitutional link between Australia and the United Kingdom.
In 2011 the Queen and Prince Philip toured the grounds of Government House in a solar-powered golf-buggy and gazed upon lounging kangaroos.
The royal couple are midway through their tour of Australia. They were greeted by about 200 Canberrans when they arrived in the national capital on Sunday night.
They travel to Uluru on Tuesday and Adelaide on Wednesday, before returning to Canberra.
When they return, they will plant a tree at the National Arboretum on Thursday April 24, and attend Anzac Day commemorations on Friday and plant a Lone Pine at the Australian War Memorial.