Riverbend is a great spot to stop and chill out for a few days. Different site shapes and sizes, and the site we were on had plenty of room for multiple big rigs, although it was just is on there with our 21ft 6in van, and was mostly flat. Quiet, lots of bird life flying around, horses wandering through. Just serene..... most of the time. It is a working farm, so you'll hear a motorbike occasionally, along with a pump down on the river, but generally really peaceful.
Lots of room to go walking if you feel like moving a bit, camp fires are allowed as long as there's no fire ban. It's fairly dry right now (Easter) and the River is quite low, but we could still have a fire with those nice cool nights we had.
Richard is a great host. He came to say G'day when we first got there and is happy for you to contact him in need, otherwise he pretty much leaves you to your serenity.
Would recommend this reasonably priced spot for a stop over.