Steve Irwin's parents found this HEARTBREAKING letter after he died

It's been over a DECADE since Steve Irwin's tragic death, and The Crocodile Hunter's parents have shared a heartbreaking letter that their son wrote to them before passing away.

Steve's Father Bob Irwin says he only found the letter last year when he was putting together his latest book: The Last Crocodile Hunter: A Father and Son Legacy:

 

The letter read:

"Probably one of the most unfortunate things in a ‘Bloke’s Life’ is that it takes over 30 years to realise how essential you have been to build my character, my ethics and, most importantly, my HAPPINESS.

At 32, I am finally starting to figure it out. In good times and in bad, you were there. Your strength and endurance to raise me will not go unrewarded. My love for you is my strength!

For the rest of my life I will reflect on the unbelievably GREAT times we’ve shared and will continue to share. You’re my best friends!"

Sunday (Father's Day) marks exactly 10 years since Steve Irwin lost his life after being stabbed by a stingray.

Steve was 44 years old at the time of his death.

His daughter Bindi Irwin shared the below photo as a tribute to her late father on his death anniversary yesterday:

You'll be my hero for my entire existence. I love you more than words can describe.

A photo posted by Bindi Irwin (@bindisueirwin) on Sep 3, 2016 at 3:08pm PDT

RIP Steve Irwin... we miss you!