South Coast Police District Commander Superintendent Greg Moore said those who are seeking to breach health orders should "think again" as more police will be in the community enforcing restrictions.

Read more: Nowra NAB undergoes deep clean after confirmation of close COVID-19 contact

"We know people have been tempted to come to the South Coast in breach of public health orders," he said.

"We're taking the opportunity to reinforce that police will be out and about checking people's licence details, checking people's addresses, and making sure we're doing our best to keep the community safe during this period.

"We're also looking at ramping up our mobile and stationary random breath testing.

"People can expect to see more police on the main highways, and also on back roads and checking restaurants."

Read more: South Coast Police District confirms former prisoner at Nowra Police Station returned false positive to COVID-19

344 new locally acquired cases were recorded in NSW on Wednesday, August 11 from the 24 hours from 8pm. Two deaths were recorded.

The warning from police comes after concerns have been expressed about Sydneysiders travelling to their holiday homes under a loophole.

Moving between places of residence is currently considered a reasonable excuse for travel, according to NSW Health.

Read more: Gerringong resident fed up with Sydneysiders escaping lockdown

Mr Moore said Crime Stoppers have been inundated with complaints from locals who are dobbing in those breaching public health orders.

"Crimestoppers receives thousands and thousands of calls weekly," he said.

"We certainly got really good networks of supporters in the community that will know if someone is doing the wrong thing.

"Don't even think about risking consequences to yourself, but more importantly, the safety of our community."

Read more: Two more deaths, 344 new NSW cases

Mr Moore warned the penalties for breaching public health orders are serious.

"There's a punishment for $1,000 and also for continued offences," he said.

"The consequences are serious and individuals could find themselves in the back of a paddy wagon and entering into the court."

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