Bindi captioned the shot: "Love. Light. Koala cuddles."
The photo was taken at Bindi and Chandler's second home, Australia Zoo, and swiftly racked up almost 17,000 likes in less than an hour.
The kindhearted animal lover is beloved by Australian fans, with many sending messages of love to her and her long time love.
One follower wrote: "Bindi you are gorgeous! I love following your family's posts, I grew up with my family watching your dad's show and my mom adored him (rest her soul).
"The things you guys do are amazing and you guys bring so much light into people's hearts, world, and souls. <3"
Earlier this month, Bindi's supporters were delighted to see the young environmental activist appear as a guest judge on DWTS Australia.
Watch this video to see Ms Irwin give her opinion on model Jett Kenny's performance!