A photo posted by Bindi Irwin (@bindisueirwin) on
Steve died in a tragic accident when he was fatally attacked by a stingray while filming a documentary in Australia in 2006.
Sharing a photo of Steve and his little girl waxing a surfboard together, Irwin sweetly captioned the photo, "I love you. I hope I'm making you proud."
The 17-year-old is a strong supporter of animal causes and works hard to keep her father's legacy alive.
Wildlife Warriors is a non-profit organization the Irwin family started to help promote the causes that were close to Steve's heart. Last month, the very first Steve Irwin Gala Dinner was held in Los Angeles.