Werribee River - K Road Cliffs
If you are heading out to the open range zoo then it might be worth a quick visit to look at the cliffs. They are about 1km past the Zoo entrance. There is a carpark at the top. The cliffs are unstable so it is important to stay behind the fencing.
If you are out for a drive then you could continue down to Werribee south for a devonshire tea.