The Wolli Creek Preservation Society aims to ensure the preservation of the natural and cultural heritage of the Wolli Creek Valley, its tributaries, associated corridors and their ecological communities, and the ecologically sensitive restoration, expansion and maintenance of these areas. The Wolli Creek Preservation Society acknowledges that Wolli Creek flows through the cultural landscape of the Gadigal people.
Members of Wolli Creek Preservation Society actively encourage community use of the Valley and conduct environmental walks and education activities for schools and the general community. They organise bush regeneration activities, kayaking trips and monthly bat counting and bird surveys.
They have fought hard to retain and enhance the Valley and have brought the Valley under the protection afforded by Regional Park status.