Fire and Rescue NSW Station 411 Oberon said on Saturday that the threat to property at the historic precinct had eased and resources were needed to send to the state's south.

"FRNSW firefighters, with support from Jenolan Caves RFS, NSW Ambulance and NSW National Parks and Wildlife Service, worked very hard in dangerous and challenging conditions around the clock to protect property, most of which had historical significance," the station said on its Facebook page.

"Jenolan Caves house and facilities were saved, as well as the majority of surrounding cabins.

"Unfortunately, we did lose four structures, including the Jenolan RFS shed.

"Most importantly, however, zero lives were lost during the Jenolan Caves operations."

According to Jenolan Caves, the structures lost were a vacant staff cottage, the cavers' cottage and cottage 11, described as a building of local heritage significance.

Due to the bushfire conditions, Jenolan Caves has suspended all activities, including the use of its hotel, café and restaurant, cave tours and bushwalks, up to and including Friday, January 31.

Business as usual will resume "when conditions are safe", according to Jenolan.