Bumbunga comes from the Aboriginal Parnpangka, which means rain water lake. Along the way, there are iron sculptures, huge cockroaches, rats, tin men, flying saucers, big flies, etc. This is a very ironic set of sculptures made by private environmentalists using waste products to protest the government's plan to build a landfill in this area. Among them, next to the giant cockroach sculpture stands the title of "The World's Largest Cockroach" certified by Australia's Channel 9!