Hot Air Ballooning
The Australian Ballooning Federation (ABF) administers recreational ballooning to standards approved by CASA. Recreational ballooning refers to pilots who hold a private balloon certificate issued by the Australian Ballooning Federation but do not carry fare-paying passengers.

When over populated areas balloons must fly at least 1000 feet above ground level. When over other areas balloons are not required to observe a minimum height.

Courtesy of the Civil Aviation Safety Authority.