460nicole-richie-1-440.jpgCourtesy Taronga Zoo

The Ritchie-Madden family is having a wild time Down Under!

Nicole and Joel's adorable kids, Harlow, 4, and Sparrow, 2, got a huge treat while their dad was off duty from his gig as a judge on The Voice Australia, by spending a fun-filled day at the Taronga Zoo in Australia, on Wednesday afternoon.

The cute kids got up close and personal with a friendly giraffe, who they took turns feeding, and they also got to visit with Yindi, the koala!

After their adventure at the wild animal park, Ritchie Tweeted: "Thanks [Taronga] Zoo for having us today with the kids," while Madden added, "They are still buzzing from it. Can't get enough. We'll be back fo sho."