Oprah Winfrey speaks after accepting the Minerva award at "The Women's Conference 2010" in Long Beach, California October 26, 2010. [Photo/Agencies]

SYDNEY - Oprah Winfrey landed in Australia on Wednesday, joining 300 eager audience members for her ultimate giveaway - an action-packed, Down Under adventure including close encounters with kangaroos, surfing lessons and a journey to the remote and dusty Outback.

Related readings:  Oprah Winfrey feared launching OWN network  Oprah's audience begins dream trip  Oprah Winfrey named top earning female  Oprah Winfrey honoured at Kennedy Centre Awards

Winfrey kicked off her 25th and final season of "The Oprah Winfrey Show" in September by surprising her shrieking, jumping and sobbing fans with what she's billed as the trip of a lifetime. The hand-picked audience, who arrived in Sydney on Tuesday, was made up of some of who the program called its most loyal viewers over the years.

Winfrey landed in the northeast coastal city of Cairns, and was expected to head directly to Hamilton Island, on the Great Barrier Reef, to join some audience members awaiting her arrival.

The itinerary for "Oprah's Ultimate Australian Adventure" has been kept a closely guarded secret, with the audience still left in the dark upon their arrival in Sydney. But travel details finally released by Australia's tourism minister on Tuesday reveal a sweeping adventure in store for Winfrey's fans, with trips planned to each of the country's eight states and territories.

The audience, which ranges in age from 18 to 75, has been split into several smaller groups and will be sent off to explore the glittering Great Barrier Reef, the crocodile-infested rainforests of northern Oz, and the famous red monolith called Uluru, in the Outback. They will also tour the country's wine regions, visit a historic prison colony in the island state of Tasmania, and check out the wildlife on Kangaroo Island, home to koalas, sea lions and, of course, kangaroos.

Excited audience members waved at reporters and photographers as they were ushered through Sydney airport and onto a bus, which whisked them away to a hotel for a briefing and a traditional Aboriginal dance performance.

"It's an unbelievable experience, and I just want to soak in every bit of it," said Jocelyn Kelley, of Boston, who was traveling with her mother, Gloria. "To be in that audience, to be a part of something so big, is just amazing."

Winfrey will film two episodes at the Opera House (which the Australian media has renamed the "Oprah" House) and a third episode at a yet-to-be disclosed location, rumored to be somewhere in the Outback. The shows are scheduled to air in January.

Her arrival has been treated with breathless anticipation in Australia, which is forking out more than $4 million for the trip between the federal and state governments. Officials say that's a small price to pay for the many millions of dollars of tourism advertising the show will bring.

"Oprah is a household name, not just in the United States but in the 145 countries where the show is broadcast," Federal Tourism Minister Martin Ferguson said in a statement. "That Oprah has chosen Australia as her Ultimate Adventure destination sends a powerful message to her millions of fans around the world."

The Winfrey fans will have a packed schedule, enjoying everything from surfing lessons and snorkeling to nature hikes and beachside barbecues.