Gees63, you just caused me to have a flashback! It must have been late 1940's when a similar caravan stopped overnight in a cul-de-sac beside our home in an inner Melbourne suburb. My father supplied water for the horse, and we were invited to inspect the caravan. Quite an adventure!
Another little orchid. This one is a sarcochilus, which I believe is endemic to parts of eastern Australia and some Pacific Islands.