Since the Duke and Duchess of Sussex left Australia last year, Australians have been wondering when the next royal visit will be.
The Royals have made more than 50 visits to Australia since 1867 and celebrated Australia Day on some of those occasions.
The Queen, Prince Philip, Princess Diana and Prince Charles all famously celebrated the 1988 Australian Bicentenary that marked the two-hundredth anniversary of the arrival of the first fleet.
Princess Diana, Princess of Wales, chats with lifeguards at a surf carnival at Terrigal beach as part of the Bicentenary celebrations
Glowing in green: The Princess of Wales looked radiant as she smiled at the crowd wearing an emerald green dress by Catherine Walker and a matching hat by Philip Somerville
More than 2.5 million people gathered at Sydney Harbour, the biggest crowd to ever attend an Australian event.
The Princess of Wales waved to the masses wearing an emerald green dress by Catherine Walker & a matching hat by Philip Somerville.
Our current and future monarchs, the Queen and Prince Charles, led the celebrations.
Charles and Diana, the Prince and Princess of Wales, waving to a crowd of 2.5 million Sydney-siders during bicentenary celebrations at the Sydney Opera House
Not quite the first fleet: Sydney Harbour was filled with ships, ferries, yachts and dinghies
In a speech at Sydney Cove, the Prince of Wales said: ‘As history goes, 200 years is barely a heartbeat. Yet look around you and see what has happened in that time – a whole new free people and a whole new free country, Australia.’
The Queen and the Duke of Edinburgh had kicked off bicentenary celebrations the previous year in Portsmouth to mark 200 years since the First Fleet set sail from the UK.
They inspected the HMS Sirius frigate, named after the original flagship that carried Captain Arthur Philip.
The Queen and the Duke of Edinburgh on the bridge of HMS Sirius in the Solent. Kicking off Australian Bicentenary Celebrations a year before the 1988 bicentenary year
The Princess of Wales inspects the period-dressed soldiers at the Bicentennial celebration held at Sydney Opera house on Australia Day
The 1988 bicentenary celebrations took place throughout the year, unlike standard Australia Days.
The festivities took the Royals across the country including the Central Coast.
Diana met a group of lifeguards who won a surf carnival at Terrigal Beach in what has become an iconic picture of the Princess of Wales.
Pretty in pink! Princess Diana inspects her sunglasses in a bright pink ensemble on Australia Day Eve, 1988
Queen Elizabeth II and the Duke of Edinburgh (background) with Lord Mayor of Sydney Emmet McDermott (1911 – 2002) in Sydney during their tour of Australia, May 1970. They are there in connection with the bicentenary of Captain Cook’s 1770 expedition to Australia
Going even further back, Queen Elizabeth II made a visit to Australia in 1970 to celebrate a different bicentenary – the bicentenary of Captain Cook’s voyage to Australia.
In recent years the Royals have also made an effort to celebrate Australia Day, even from the UK.
The Duke and Duchess of Cornwall celebrated Australia Day from London at the Australian High Commission in 2011.
The Duke and Duchess of Cornwall attend the Australia Day celebrations at Australia House, in London, on January 26, 2011
Starry eyed: Prince Charles attends the Australia Day celebrations at Australia House, in London, on January 26, 2011
Prince William laughs as an Aboriginal elder wafts smoke in his face during a visit to Redfern Community Centre on the first day of his Australian visit in 2010
The Australia Day visits by their elders were followed by trips to Australia by Prince William and Prince Harry.
William visited Australia in 2010 prior to his marriage to Kate Middleton. He returned the following year to visit flood damaged areas in Queensland and Victoria.
Last year’s trip down under by the Duke and Duchess of Sussex marked another Australian event, the Sydney Invictus games.
The newest Royal couple met a mother koala Ruby who had just given birth to a joey.
Coincidentally, the couple announced they were expecting a baby during the same trip. It must be the Australian effect.
Koala-ty time: The Duke and Duchess of Sussex meet Ruby, a mother Koala who gave birth to koala joey.