More than a million people are expected to line the banks of Sydney Harbour later today to catch a glimpse of Prince Harry and commemorate 100 years since the Royal Australian Navy's (RAN) first modern warships sailed into Sydney.
The event will involve 8,000 naval personnel and Royal Australian Air Force aircraft, and will finish with a firework display over Sydney Harbour Bridge.
Britain has sent one of its latest and most advanced ships, Type 45 destroyer HMS Daring, to represent the Royal Navy.
Earlier Prince Harry embarked on survey ship HMAS Leeuwin at the city's Garden Island naval base before inspecting the flotilla at the International Fleet Review in Sydney, which features around 40 warships from 17 countries.
More top news
Exit polls show Merkel is likely to remain as chancellor but a far-right anti-migrant group is set to enter Parliament for the first time.
Police have foiled seven terror attacks since the Westminster atrocity in March, London Mayor Sadiq Khan has revealed.
Cumbria Police have been forced to rescue a group of hikers from a mountain who were unable to walk after consuming cannabis.