A master plan showing proposed changes to the holiday park layout was posted in the camp just before Christmas.
It shows a new cycle and pedestrian track that would prevent boats being freely parked on, or launched from, the beach.
It also reduces the size of enclaves for groups to 100sq m and there did not appear to be room for boats to be parked next to campsites.
At present, some enclaves accommodate up to 60 people, along with assorted vehicles and equipment.
The campers told the Otago Daily Times yesterday they did not know whether the layout was a fait accompli.
Peter Hook, of Lake Hawea, said he had invited Queenstown Lakes Mayor Vanessa Van Uden and council chief executive Debra Lawson to visit the camp, and he hoped they would do so next week.
Queenstown Lakes District Council holiday parks manager Greg Hartshorne said yesterday campers had been ringing him with their concerns and he hoped a newsletter could go out to them soon.
But he could not tell campers what would happen because the council had not made a decision.
''As soon as I know something, I will tell them,'' he said.
Wanaka Community Board chairman Lyal Cocks said yesterday he was aware of concerns about the size of lots and boat parks.
''The draft layout hasn't been through the community board or the council yet, so people are getting a wee bit ahead of themselves ... There are all sorts of issues there and we want to work through them in a logical way,'' Cr Cocks said.
Improving the wastewater and sewerage systems was the spending priority this year, he said.
Reducing boating congestion - perhaps by the installation of a public ramp at the west end of the bay - could be discussed but, if things were working well, radical change might not be needed, Cr Cocks said.
It would be business as usual at the camp until the council had looked at the issues properly through the annual plan process.
People would be able to make public submissions, Cr Cocks said.
The campers said yesterday they did not want any changes, unless they were to toilets and showers. They didn't want any other amenities.
The drawcards were the lake, the ability to park on the shore and launch boats from there and being able to camp with friends and family without restrictions, they said.
They did not think the proposed changes could be justified financially. A multimillion-dollar revamp would result in fewer patrons and reduced income, they said.
Any changes would also be against the spirit of the camp, which was a gift to the community from the Scaife farming family many decades ago, they said.
The campers also feared the council could be turning its back on long-term family camping in favour of short-stay international tourists in camper vans.
Jeff Donaldson, of Dunedin, said he and friends from his school days had been coming for 40 years and all were passionate about Glendhu Bay.
''There's a lot of feeling because people have been coming here for so long and in big family groups,'' Mr Donaldson said.
Brent Fraser, of Dunedin, said campers were distraught and wondering whether they would be able to continue holidaying at Glendhu.
Dave Hamilton, of Tapanui, said more information was urgently needed.
''They need to do something about telling the campers what they are going to do. They've heard all these rumours and may go somewhere else,'' he said.
Mr Hartshorne said work on the sewerage and wastewater systems would begin ''once the general rush has gone''.
Some people may have to be relocated to another site, but no-one needed to leave the camp, he said.