The Big Avocado is one of Australia’s big things, found at the entrance of Tropical Fruit World in Duranbah New South Wales. It is one of two big avocados, the other is out on the Pacific Hwy before exit.
The difference between the two is the one on the highway is an avocado halved 
with the stone visible and is accessible on the side of the highway at any time. The one here is a larger whole avocado and is just inside a fence with closing gates.
To get up close it is best to go when Tropical Fruit World is open, although the avocado isn’t far from the fence and you can get a photo of it easily enough without needing to jump the fence after hours.
The Big Avocado is 4 metres in size, built around 1983. Back then, the attraction was called Avocado Adventure Land, hence why there is a Big Avocado there.