The low Aussie Dollar is fantastic for the tourism industry. It makes it more expensive for locals to holiday off shore and cheaper for international travellers to come to Australia, driving up your occupancy rates on both fronts.
The general forecast by most major banks is that this trend is going to continue. Australia is poised for further interest rate cuts while USA is on the verge of increasing their interest rates. This will result in a further weakening of the Australian Dollar and continue to bring guests to your park.