It is said that whenever Aboriginals approached this, they would[clarification needed] a piece of wood into the hole to "propitiate the demon supposed to reside within its profound and mysterious depths.
"[4] Colonial administrator Charles La Trobe visited the site in 1845 and 1846, and had some of his men lower a rope ladder over the cliff so he could explore the caves.
LaTrobe noted that when they came to the point under the sink hole there was a large pile of timber, assumed to be the items thrown down by Aboriginals over the ages.
They then set fire to the pile lighting up the cave "... and displayed a magnificent vaulted chamber, bedecked with long glistening stalactites, and tenanted by vast numbers of bats, whose whirring, whizzing noise was probably that which the natives attributed to some supernatural being.
[6] Pollen analysis of sediments in the cave has assisted in reconstructing the Pleistocene climate and environment of the region and understanding what resources were available to Aborigines.