koalabear - we did love Sandringham but never could get St Kilda - I think we were too grown up iyswim!!! We also spent some time in S Yarra but it's not so family/beachy IMO.
DH is Kiwi - he left NZ in 89. He got a job in Melbourne in 2000 and we lived there for almost a year before returning to the UK. Looking back, we onlyt came back because we'd originally planned to and when his contract finished there wasn't anything to stop us staying, tbh. We just didn't think hard enough about it. Now I spend a lot of time wishing we were back there - I''ve never felt so 'at home' when away.
Six degrees of separation - we have lots of great stories about that. Best one was DH working for Royal Mail in Leeds. Having a smoke and chatting to one of the directors who said he'd met a crazy Kiwi once in Alberta, Canada. Oh really, said DH, my uncle did a spell at uni in Alberta. Yep, one and the same.