Hi SG. I'm new to Just You also. I haven't been on the Australia or Croatia holidays, but I was in Australia last year for over two months visiting friends over there. It's a fabulous country and well worth a visit. I'm sure you would have a super time 'down under' if you decided on that option. Watch out for the redback spiders though. Having said that, I only saw one the whole time I was there.
Bazz.