Bindi Irwin is remembering her late dad, Steve Irwin, 10 years after his untimely death.

The 18-year-old took to Instagram on Sunday, Sept. 4 to share a sweet throwback photo of herself with Steve — and her kinds words about the Crocodile Hunter will melt your heart.

"You'll be my hero for my entire existence. I love you more than words can describe," the former DWTS winner wrote alongside the snapshot.

MORE: Bindi Irwin Emotionally Remembers Late Father Steve Irwin on Her 18th Birthday

Steve sadly died at age 44 after being fatally stabbed by a stingray while snorkeling in Australia's Great Barrier Reef in September 2006.

Click through the gallery below to see Steve and Bindi’s cutest photos together!