Lake Macquarie council has closed its pools and patrolled beaches for the rest of the season.
The council will also close the Museum of Art and Culture at Booragul, the Swansea Centre and adjacent Visitor Information Centre, the community halls it operates and restrict library services.
The closures were announced on Monday night and come into effect immediately in response to tighter restrictions of non-essential services and to ensure the health and safety of residents.
"Our beaches and pools will effectively close early for the summer season," service delivery director John Ferguson said.
"This means there will be no lifeguard patrols provided at any of our beaches from this week.
"Our swim centres had already temporarily cancelled their programming and activities last week and this will come into full effect with the pools closing until next season."
Core council services, such as waste collections, roadworks and maintenance, have not been impacted.
Lake Mac Libraries will offer a limited number of bookable computers for people to access the internet.
A click and collect service will be available at Charlestown, Speers Point, Swansea and Toronto, and a home delivery service is also available for senior library members only.
Lake Macquarie mayor Kay Fraser urged the community to keep up-to-date and asked residents to remain calm and mindful of others as the COVID-19 situation unfolds.
"Our libraries, pools and all our local facilities are valued assets for our community, however things are changing quite rapidly and council has taken the decision to close or reduce services at these facilities to ensure the health and safety of our residents and staff," she said.
"The most important thing at the moment is for our community to follow NSW Health guidelines, not to panic and to remain calm."
The council will attempt to redeploy staff impacted the closures across its operations.
An update is expected to be made on Tuesday.