I’ve been having a bit of a run around western Victoria and one of the highlights has been a visit to a couple of waterfalls on the Wannon River. They’re about 9km apart 16 km west of Hamilton and they’re well signposted off the Hamilton to Mt Gambier Road (B160). You can camp in the Wannon Falls Scenic Reserve.
The Wannon arises in the Grampians beneath Mt Abrupt and flows into the Glenelg River which reaches the sea in the far west of Victoria.
The geology of the falls is quite different. The Wannon Falls tumble over a hard lava bed between 1 and 2 million years old lying on top of softer rock. It’s a single drop of 30 metres into a plunge pool.
The Nigretta Falls tumble from shelf to shelf on much older rock (~400 million years) that is hard from top to bottom making it rather more spectacular to watch.