TWO-time world surfing champion Mick Fanning has thrown his support behind the extension of Big Groyne at Kirra Point.

He joined with representatives of the Tweed River Sand Bypass Project, Bring Back Kirra and Kirra Point Incorporated to criticise the groyne's reduction 16 years ago.

Bypass project committee member Wayne Bartholomew said after "15 bad surfing seasons" the negative impact of the groyne reduction had "gone far beyond a coincidence".

I was born and bred here and really it was guys like Mick and Joel (Parkinson) who tasted the last few great years of Kirra," Mr Bartholomew said. "Anyone under the age of 28 has never surfed Kirra, and it's been an invaluable part of Mick's development.

"People would line the boardwalk when Kirra was on; they would come and stay and the Kirra precinct is missing out on all that. "Our plan's not that radical; it's like having a grand prix race track and tweaking the chicanes."

Bring Back Kirra president Wayne Deane said the Department of Environment and Resource Management and Gold Coast City Council had been approached to fix the problem.

"DERM says it's the council's responsibility and the council says DERM should do it," Mr Deane said.

"(Division 14) Councillor Chris Robbins has been great, doing her best to restore it to its former glory but while the council is trying to do their best they simply haven't had the funding."