We took a trip on the South Gippsland Tourist Railway from Korumburra to Loch (thanks Kitty for the tip!). It's such a quaint little line with gorgeous scenery along the way. We basically had the train to ourselves, apart from a few elderly couples. I'm really surprised it's not more popular as tickets are very reasonably priced and it's a great little adventure for kids. I suspect maybe people don't know about it.
We spent the afternoon at Coal Creek which is a little old fashioned coal mining village. It's a little bit like Sovereign Hill, only with no gold and less people dressed up in period costumes. Entry is FREE and again, we virtually had the place to ourselves despite it being a sunny day in the school holidays. We had picnic lunch and the kids had a fantastic time exploring and trying to pat the emus!