Firefighters say two early morning fires burning on either side of Swansea Channel appear to have been deliberately lit.
Crews found bush alight on Coon Island behind the Swansea Caravan Park at around 2am.
While an RFS boat was needed to tackle another fire on an island near Naru Street at Marks Point.
In comes on another day of severe fire conditions, with a total fire ban in place for the Hunter.
Temperatures are set to climb into the 40's for a third straight day.