This Tuesday, we'll all get to see the the first of four episodes (airing Jan. 18-21) chronicling Oprah Winfrey's recent visit to Australia, the much-hyped excursion she made in December with hundreds of her U.S. fans, ages 18 to 75, in tow.

Winfrey first stunned a whole audience during September's season 25 premiere with the news that she was flying them down under for the adventure of their lives, on a jet she announced would be piloted by John Travolta.

We know that massive crowds welcomed the talk-show queen in Sydney and Melbourne, and we know Hugh Jackman smashed into her set during a high-flying stunt gone wrong. She even went sailing with Russell Crowe -- and according to the official show guide, she led a record-setting group of climbers right up the Syndey Harbor Bridge.

Now, via this Reuters video report, we also know that she was helicoptered over the Great Barrier Reef (for what she called a "damn cool!" view), and got an up-close demonstration of some very horny koala bears. Cute? Scary? You decide!

Check out Oprah, Gayle King, their friendly Aussie guides and ecstatic local fans in this preview of the week's special episodes.