Police are appealing for urgent public help to locate 16-year-old Georgia Seinor, who went missing from the Lake Illawarra area on Monday.
Ms Seinor was last seen in Horsley on the morning of 17 February 2025.
Her age has sparked concern among authorities and her family, who remain worried about her welfare.
Ms Seinor has of Aboriginal/Torres Strait Islander appearance, shoulder-length blonde hair with dark roots, a medium build, stands about 170cm tall, and has nose piercings.
She was last seen wearing black pants, a school polo shirt, white sneakers, and carrying a black backpack.
Police believe Ms Seinor may be travelling to Far North Queensland.
Members of the public with information on her whereabouts are urged to contact Lake Illawarra Police or Crime Stoppers on 1800 333 000.
