This enclosure was a large exhibit at the top of the zoo (you can see the main entrance building in the background), extending from the entrance down to the platypus house. It simulated a dry riverbed. Built by Sydney Council (some kind of government gift or something) it took absolutely forever to complete because the workers would only come in to work every few weeks for a few days, then go off to work on some other project, then come back for a few more days later on etc.
Grass was included around the river 'banks', but because emus were put in the enclosure the grass all disappeared after a few weeks.
1982