Brothers Grahame and Greg Miller have returned from their dream 51.5 kilometre Molokai to Oahu open-ocean paddle-board race in Hawaii with two missions accomplished.
The Wollongong men used their personal challenge to help 11-year-old Connor Kyriacou, of Woonona, and his family recover financially from Connor's brain surgery in May - and to support others like him.
They hatched the idea after meeting Connor and heard how his operation was going to cost $70,000. Without health insurance, Connor's family was facing financial pressure and the Millers wanted to help.
But when a generous Wollongong community raised enough to cover the cost of the operation, they decided to keep raising money for Connor's post-operation costs and help other children in the Wollongong undergoing serious operations.
The Molokai Paddle involves traditional and stand-up paddle boarders competing across the infamous Ka'iwi Channel.
Despite being a former Uncle Toby's Ironman, Greg Miller described it as very tough.
"It was harder than what we expected and we didn't get the conditions we were hoping for. It ended up being a seven-hour race when we were hoping it would be about six," he said.
"The conditions were pretty tough, but it was a fantastic challenge."
Grahame Miller used to compete on the World Body Boarding tour and agreed it was an extremely tough event.
He is now looking forward to spending time with Connor after giving him the proceeds.
"We made up a big cheque for Connor. We ended up raising $14,500," he said.
Connor couldn't believe the brothers' generosity, saying, "That is awesome".
Mum Lyza Kyriacou said her son still had regular check-ups and, although he had some trouble with his balance from time to time, his recovery had been good.