Great Barrier Reef Marine Park Act creates a single managing authority

node

Australian legislation establishes the Marine Park and the Authority that manages it, following a public campaign against proposals for limestone mining and offshore petroleum drilling on the reef. The Act matters because it made the whole system, rather than selected sites, the unit of management — the precondition for the representative zoning introduced in later decades.

A node is not a place. Drawing it on a map would assert something about the world that no stored fact supports.