“The last photo ever taken of us as a family,” Bindi wrote on Instagram.
“The day before I had to wave goodbye to my hero, without knowing it would be the last time.
“But Dad, I know you walk beside me always and your strength lives within me. I love you.”
The photo shows Steve in his trademark khakis, with Bindi, baby Robert, Mum Terri, and a baby crocodile.
It has already received more than 100,000 likes.
Wildlife Warrior Steve was killed by the barb from a stingray while filming a TV show.
Bindi has dedicated almost every performance on Dancing With The Stars to her parents.
Her Mum, Terri, has never remarried.
Bindi wept during last night’s semi-final, after a photograph of her as a little girl in Dad’s arms was shown on the big screen.
Bindi is due to dance for the Mirror Ball trophy today.