A bushfire on North Stradbroke Island off Brisbane broke containment lines on Friday, with extra fire units called in to help battle the outbreak.
Emergency crews have been battling several fires on North Stradbroke Island all week, and about three large blazes are currently burning.
On Friday afternoon a bushfire broke containment lines in an area known as Blakesly Slip, south of the island's airport.
Fire service spokesman Mark Halverson says two families camping nearby have packed up.
"Those people have chosen to leave the island; however, they're waiting for the right tide for that to happen," he said.
The fire poses no direct threat to people or property, but crews are working to protect at least one building.
"We do have crews conducting property protection within the area of the water treatment plant," Mr Halverson said.
Authorities say a wind change and high temperatures forecast for Saturday are a cause for concern, but no further evacuations are planned at this stage.
Hundreds of residents were briefed at a series of emergency meetings this afternoon and are being told to remain vigilant.
Although the wind direction is set to change Saturday afternoon and temperatures are set to rise into the 40s, fire crews say they are doing all they can to build a firebreak around townships like Dunwich.