547 miles
They are both far.
1000 kilometres
No, he lives in Budgewoi, NSW. Not too far from Sydney :)
Yes: Australia's highest mountains lie between Sydney and Melbourne. The Snowy Mountains are part of the Great Dividing Range, which begins in far north Queensland and continues south down the eastern coast, beyond Melbourne. Mountains feature significantly between Sydney and Melbourne.
On the highway, via means to go "by way of". For example, if you are travelling from Sydney to Melbourne, you may ask "How far is it from Sydney to Melbourne via Canberra?", i.e. going through Canberra on the way.
110 miles
Candlebark Farm is in Healesville, 65 kilometres east of Melbourne. I would take you around an hour to drive from there into Melbourne city.
4.5 hour flight 12 hour drive
6 to 7 hours drive
It's a little over 16 kilometres from Melbourne to Hampton. It will take you around 25 minutes to drive there.
15 minute drive on the glace bay/ sydney highway
Approx 450 Kilometres and takes approx 5 hours to drive. Of course, this depends on where in Sydney you are travelling from.