In 2023, 28 councils across metropolitan Melbourne, along with the Field Naturalists Club of Victoria, the Entomological Society of Victoria, Melbourne Water, University of Melbourne, Latrobe University, Australian Citizen Science Association, Victorian Environmental Friends Network, Yarra Riverkeeper Association, Victorian National Parks Association, and Gardens for Wildlife Victoria, are collaborating to represent Greater Melbourne and compete with cities from around the world in the 2023 City Nature Challenge.