Thanks for the website Lauri. Doing the Great Ocean Road was like a trip up the California coastline. But it was many years ago and things may have built up since then. But I wouldn't want to do it on a bus, we were in a minivan and could stop as often as we wanted. Didn't have a problem doing it in one day. You are right though, the first day would be the only option. There are many things to see in Melbourne - it is a gorgeous city with beautiful wine country in the Yarra Valley.