Anyone else wonder why...
...they went on a picnic to Hanging Rock? It doesn't seem a suitable site for a bunch of school girls. It was mentioned more than once that it was a dangerous place:
"Once again let me remind you the rock itself is extremely dangerous, you are therefore forbidden of any tomboy foolishness in the matter of exploration, even on the lowest slopes."
So why even take them there?
I know how you feel, Mister. I hate it when my igneous rocks are even touched!