Private Karl Hinett was 19 years old when he suffered horrific burns in a petrol bomb attack during a rescue mission in Iraq in 2005.
And in just seven years the 27-year-old has completed 126, including races at both poles, raising £50,000 for the hospital in the process.
He added: “The people there saved my life but the injury goes on for years, and the work the hospital did helped me get back on my feet."
Richard James is acting head of news for BuzzFeed Australia and is based in Sydney.
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