Kiwi Brendon Demmocks in coma after Australian water accident

Brendon Demmocks had planned to fly home to surprise his mum next month (Supplied)
Brendon Demmocks had planned to fly home to surprise his mum next month (Supplied)

A Kiwi man is in an induced coma after a water sports accident in Australia left him with life-threatening injuries.

Brendon Demmocks was biscuiting with friends on the Murray River last weekend when it veered off course and threw him headfirst into a tree.

He was pulled onto the boat that had been pulling them along, where he managed to speak for a short time before becoming unconscious, Fairfax Media reports.

Mr Demmocks, from Amberley in Canterbury, had planned fly back to New Zealand to surprise his mother for her birthday in March, but she is now at his bedside in Melbourne Hospital keeping vigil with other family members.

The diesel mechanic had moved to Melbourne last year.

He's already had surgery to release pressure on his brain and is set to undergo more tests to assess the extent of his injuries.

The family has set up a Givealittle page to help the family with travel costs, emergency passports and associated medical costs, as well as getting him airlifted to hospital.

In the week since the page was set up, it has raised more than $7500.

Newshub.