One of the pictures in the Blue Mountains is of a particular rock formation. That formation is known as the Three Sisters.
Nick that carrot looking thing is a termite mound. They are found all over the top end of Australia. We have two kinds of termite mounds, a Magnetic Termite Mound a the Conical one. The magnetic ones point North and South with the flat sides facing east and west so that they can regulate the temperature within the colony. In the Northern Territory two of our parrots species build nests in the conical type of mound. They are the Golden Shoulder Parrot and the Hooded Parrot which are the same genetic family as the Red Rump Parrot found around me. Sometimes inexperienced birds will try to build a nest in the magnetic type but because they are very thin they usually dig right through to the other side. These termite mounds can be extremely large being many metres high and can have a diameter of 30 mtrs.