Firefighters from 10 trucks battled a large scrub fire whipped up by wild winds at Macedonia Park in Berkeley on Saturday morning.
The fire burnt through an estimated eight hectares of grass, scrub and reeds, with flames reaching eastward to Hooka Creek Road and running across the park towards the M1 Princes Motorway.
Firefighters believe the blaze began soon after midnight.
Six Fire and Rescue NSW crews and four Rural Fire Service crews responded.
Wollongong Fire and Rescue NSW Inspector John Hawes said firefighters had to drive through heavy smoke before they could understand the scope of the blaze, which was fanned by a strong west-to-southwesterly wind.
‘‘Visibility was severely hampered by the amount of smoke,’’ he said.
‘‘The fire was expanding because the wind was blowing embers in the dry grass.’’ Crews continued snuffing out embers until 6.30am.
Inspector Hawes said the cause of the fire was yet to be determined.
No property was damaged in the fire.