Police say about 20 people, including staff, at The Organic Food Store were not wearing face masks inside on Saturday at lunchtime.

It's alleged that when officers asked them to wear masks, the employees "expressed they had no intention of complying."

Officers then arrested two women aged 62 and 43, who will face court charged with breaching public heath directions.

The women were also arrested on Thursday and charged with similar offences.

A 63-year-old man was also charged on Thursday with assaulting and resisting a police officer, inciting others to resist a police officer, and failing to comply with a direction prohibiting spitting and coughing.

Meanwhile, authorities are on the verge of ordering the closure of another regional NSW cafe that has repeatedly violated COVID-19 rules.

The cafe at Jindabyne in the Snowy Mountains have been issued a show-cause notice, forcing the two owners to justify why it should not be closed.

"That's the escalation of events that both police and (NSW) Health are prepared to take," Deputy Commissioner Gary Worboys said on Saturday.

The owners, a 32-year-old woman and 33-year-old man, were arrested and charged on Wednesday for failing to wear masks.

They were released on conditional bail, but police found the cafe's patrons on Friday again wearing no masks.

There was no QR code or sign-in sheet to facilitate check-ins.

Meanwhile, 48 people were fined in NSW on Friday for failing to wear a mask, while 30 others received infringement notices for other COVID-19 breaches.

Among them were two young men from Sydney's west who tried to go on a tour of Jenolan Caves on Friday afternoon.

Police say they told the officers who stopped them that they travelled there because they were bored.

Each received a $1000 fine and were told to return to Sydney.

"It is quite clear now that people will report this sort of behaviour to police and we will take interest," the deputy commissioner said.

Australian Associated Press