Community members have been quick to point the finger with social media posts of "sightings" of people supposedly from Sydney's virus-plagued Northern Beaches out in popular tourist spots.

Read more: A complete guide to travel rules for NSW residents

On Tuesday, there were reports of a group from the Northern Beaches that were breaching the Public Health Order by holidaying in Bulli and with one witness exclaiming they'd been "turned away from a club".

Wollongong City Council who run the Bulli Tourist Park did not deny they had visitors from the area staying with them, but said they had been screened and were abiding by the rules.

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"We have had guests arrive prior to the announcement of recent changes to travel requirements, and they are entitled to continue their stay at the accommodation provided they meet the obligations of the Public Health Order," a spokeswoman said.

"We assure our community that all guests currently staying at Wollongong City Council-owned and operated Tourist Parks have been advised they need to meet the requirements and obligations of the Public Health Order."

Bulli Workers Club spokeswoman Sandra Tait said despite community reports, they had not had any instances of people trying to enter the club in breach of the Public Health Order.

Ms Tait said protocol at their club would be to contact both police and NSW Health if a breach did occur to "keep the community safe as well as my own staff".

Woonona Bulli RSL were contacted also by the Mercury but declined to comment.

It comes as the Ulladulla Leisure Centre was forced to close on Monday afternoon after a 70-year-old man from Avalon visited the centre.

Police investigations found the man travelled to the coast last Thursday but failed to self isolate, resulting in a $1000 fine.

People from the Northern Beaches LGA have been ordered to stay at home and not leave because of a growing cluster of COVID-19 cases.

Any residents who left the area on or since Thursday December 10, must comply with the same restrictions that apply to the Northern Beaches, regardless of their current location.

Meanwhile, a spokeswoman for Wollongong and Lake Illawarra Police Districts urged the public to contact them first, rather than social media, if they did see anyone breaking the rules.

"Anyone who believes they may have witnessed someone who is in contravention of a ministerial direction should contact police," she said.

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