Royals highlight of Sydney Easter Show

A security guard collapsed, the smell of hot dogs wafted across Sydney's Royal Easter Show and a grown man stood in front of a haunted house screaming "I love you William!"

It was just another ordinary day in the Duke and Duchess of Cambridge's extraordinary tour Down Under.

The royal couple arrived to wild cheers and applause at the Sydney Showground on Good Friday, the third day of their 10-day tour of Australia.

It was a Hollywood entrance but just a fleeting glimpse for many of the hundreds of well-wishers who gathered to see the royals.

The couple stepped out of their motorcade in front of the Hollywood Horrors haunted house ride before being whisked away to see fruit and vegetable displays.

William wore a dark suit with a blue tie, and Kate dazzled in a white dress.

They waved happily. William gave his shy smile. The crowd went wild again.

The couple were greeted by the president of the Royal Agricultural Society of NSW, Glenn Dudley, and his wife, Jennifer, before being taken to look at a fresh food display in the main exhibition dome.

A female security guard collapsed just before the royals arrived and was loaded into an ambulance.

It might have been the bright sunshine. It might have been the royal effect. Australians have warmed to William and Kate this trip.

"They're such a lovely couple. They're so much in love," Margaret Bryant from Cowra said.

She and her pals Margaret Wright and Marie Whiteman - all in their 80s - arrived in Sydney at 3am (local time) to see the royals.

"I thought they were spectacular and I'm glad they've come," Ms Wright said.

The royals saw sheep shearing, vegetables, showbags, skateboarding and snakes.

They greeted more crowds next to a carousel.

Then it was back on the Australian tour merry-go-round as the royals were whisked off to Manly for their second engagement of the day.

The couple were due at Bear Cottage children's hospice before a visit to the beach to see a demonstration of surf lifesaving skills.

Just another day on the royals' wild ride around Australia.