However, Ms Ellis said she was too busy to worry about what was "going on outside the gates".
Under the act camping is prohibited in areas clearly identified with relevant signage. Breaches can result in instant $200 fines, or up to $10,000 for more serious offending.
Jelena and Rodney Algie run Mawley Park Motor Camp in Masterton and Mr Algie said they also experienced problems last summer with freedom campers.
"There was a bit of an issue here last summer with people sneaking in and using our showers and laundry facilities and we're pretty sure it was freedom campers," he said.
"There was some who would pay for one night and they weren't so bad because at least they would pay something."
Mr Algie said during the peak season it was difficult to police.
"It's hard," he said. "What usually happens is one person will book in and one will stay in the car. Then when you're walking around and you see a stranger you wouldn't be sure if they are legitimate or have snuck in. This year we have decided to lock our laundry."
Meanwhile, a new survey measuring the value of campervan tourism reveals that campervan travellers contribute more than $500million a year to the economy. Nearly 64,000 campervans were hired last year - providing accommodation and transport for 21,347 Kiwi holidaymakers and 116,776 international visitors. Half of all international campervan tourists visited the Wellington region, which includes Wairarapa.
Tourism Industry Association chief executive Martin Snedden said the survey showed campers were supporting local jobs and businesses in the regions as well as main centres.
"Their spending is not limited to tourism operators but is spread across a wide range of businesses in the community."
Australians were the biggest customers, hiring 18,310 campervans last year.
By the numbers:
63,930 campervans hired
15.5 days average length of hire
2.2 average adults per campervan
$547.2million spent by campervan visitors in 2011.
Source: Covec
