No doubt filmed at Dunedoo NSW (pronounced Dunnydo) Regional Airport.
For non-Aussies, The term " the dunny" refers to the toilet. In years gone by, most places had an old non-flushing outside toilet, normally positioned well away from the house which had to be manually emptied.
At night time it was always wise to carry a torch and lift the seat before use to make sure there were no red-back spiders lurking under the seat.