In 2004, the district council got a five-year consent to continue the practice, with the requirement to come up with alternative methods.
That consent had expired, Horizons Regional Council regulatory manager Greg Bevin said. Since 2010, "beach grooming" has fallen under rules in the regional council's One Plan.
Disturbance of the foreshore and removal and deposition of material from it is permitted, the plan says, provided no toxic materials are used, everything is removed when the activity is finished, there are no refuelling spills and the activity stops if historic heritage, human remains or artefacts are found.
Such activity is not monitored by Horizons unless it gets a complaint.
Barron has hinted there will be beach matters in the council's Long Term Plan. And Deputy Mayor Jenny Duncan has said the community will be asked for input on beach management.
"I hope and expect that does happen," Barron said.
"I'm keen to have a conversation that's a lot smarter than people pointing fingers."
He would like the talks to be about more than beach grooming, but was sympathetic to the idea of using a natural dune to capture windblown sand.
It would be easy to establish, he said, because there was plenty of driftwood to use as a foundation.
The beach carpark was seldom full and could be smaller, and people could also park in the reserve. It was important for people to be able to drive to the coast, park and see the sunset, he said.
From the reserve a short boardwalk to the beach would be wheelchair friendly and better than the present access, Barron said.
Added into the conversation could be the state of the Duncan Pavilion, which would last only another 10 years because salt was corroding the reinforcing steel in its concrete base.
It was not often open, but it would be a pity to lose it as a community asset, Barron said.
The Surf Club also needs work. A $100,000 grant towards that has not been uplifted, because the Whanganui Surf Lifeguard Service and Progress Castlecliff were unable to agree on the terms of the project.
Castlecliff Beach had changed little since the 1950s, Barron said, and the main barrier to making improvements there would be inertia.