Volunteers who monitor public safety at Huttoft Car Terrace fear they could be cast off the site after an abundance of complaints from residents.
Shaun Gandy of Coastal Lookout Huttoft and Peter Marshall of Seal Rescue and Sammies Cafe provide their services voluntarily, but are not affiliated with official organisations.
Both work to keep a close watch over the area and raise the alarm to the emergency services when help is needed.
Mr Gandy said: “We are a group of volunteers trying to provide visitors a safe environment and keep a watchful eye over the area.”
They feel their valuable work is under threat after Lincolnshire County Council received complaints from residents expressing their annoyance of overnight parking.
LCC’s environment and community projects officer Matthew Davey said: “We receive lots of complaints from residents and visitors about caravan and motorhome owners who camp at the car park on a long-term basis, despite the ‘no parking overnight’ signs.
“As a result, Lincolnshire County Council is obliged to look at ways of tackling this problem. We are not planning to close Huttoft Car Terrace and campers vans or motorhomes are welcome during the day.”
Shaun said: “We’re aware of complaints, but we feel they will result in us being asked to leave, when all we’re trying to do is help, if we don’t, who will?”
Peter Marshall added: “We try our best to look after the area, dig people out when they get stuck and stop flytipping.
“If the council wish to take action, we have no problems with that, but we would like them to work alongside us rather than against us.”
Mr Davey said: “We commend the work that volunteer groups do, however the facilities at the car park like rubbish bins and toilets are designed for short-term visitors, not long-term campers.”