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He's the soldier prince and perhaps, in the tradition started by his mother Princess Diana, he was also the people's prince. Like her, he even managed a quick costume change.
In a fleeting first official visit to Sydney there was never going to be much time around the formal engagements of the International Fleet Review to meet and greet.
But Captain Wales, with military timing, made it happen.
He made his warmth felt when he went walkabout at Campbells Cove. The crowd loved him and he seemed to love them.
They even have the photos of themselves with HRH posing obligingly alongside to prove it.
Linda Wickens, who was one of the first people to greet him as he got out of the car, handed him a stuffed dingo as a present for his nephew Prince George.
The prince then stopped for a quick photo with her 12-year-old daughter Annabel who summed up the experience in one word: ''Awesome.''
Ayesha Sweeney, 19, summed up the opinion of many after travelling from Albury to see the prince.
''His uniform was really cool, his salute was awesome,'' Ms Sweeney said. ''He's a bit of a cutie, I think everyone has a crush on him. All of the ladies were wooing and whistling when he came out.''
A crush possibly shared by some at Kirribilli House, the Prime Minister's official residence, which Prince Harry visited later in the afternoon.
He met the PM's wife, Margie, and their two well-dressed daughters Bridget and Frances.
''They're both very excited to see you,'' said Tony Abbott of his daughters as they stepped forward. Bridget was in an all-white dress and Frances wore a patterned skirt and white top with a blue pattern.
Guests at the function included billionaire James Packer, cricketer Brett Lee, former rugby player George Gregan and VC winner Ben Roberts-Smith.
The prince, who arrived late Friday night, started his day with two hours on the harbour on HMAS Leeuwin with Mr Abbott, lord mayor Clover Moore and Governor-General Quentin Bryce, who conducted the fleet review and received the royal salute.
Also on board was the head of the navy Vice-Admiral Ray Briggs and Defence Minister David Johnston.
The royal arrival sparked a new game - spot Prince Harry.
It was made easier because the prince was wearing the white tropical dress uniform of the British Army and a blue Army AirCorp beret. He stood out among all those dark naval uniforms.
There were about 5000 boats on the harbour playing the game and the foreshore was also packed. The problem is, on the water, there is an exclusion zone vigorously enforced by police on speedy craft with flashing lights.
On HMAS Leeuwin there were three well-built men in suits who talked into concealed microphones whenever anyone came too close.
As they approached the Leeuwin the crew of each warship would carry out the historic tradition of cheer ship.With 13 visiting warships from US, China, UK and Indonesia and the seven Royal Australian Navy vessels representing the first naval fleet that arrived in 1913, as well as a few of the tall ships, Harry would have heard it more than 20 times.
As an Apache helicopter commander he is used to some challenging situations but the more scary role went to the Governor-General.
Every time a ship approached she would have to walk out in her powder blue suit and wide-brimmed hat onto a small structure high up and over the water called a bridge wing.
It almost looked as though she had been ordered to walk the plank. She carried out her duties with poise and aplomb.
Finally worth noting in a whirlwind day, there was the Kirribilli gate moment. A crowd was there. They pushed their hands through the bars like some prison scene evidently anxious to touch, shake or somehow engage with the prince. One passed a letter through which the prince studied before putting in his inside pocket.
In the respectful tone adopted by almost all who engaged with him during the day, the letter praised Prince Harry's military career, which includes a stint in Afghanistan.
So who got closest to the Prince?
Well, it may have been Clover Moore who posted a selfie with a smiling Harry at her side. But the night was still young and, it's not as if his girlfriend Cressida Bonas does not know: the prince and the city of Sydney love to party.