We stayed at the Eden Gateway twice, on the way down and back to and from our daughter in Gippsland. The property is clean and spacious with a mix of static and mobile caravan and camping sites and a number of luxury cabins - which we used.
A major benefit for us was that the site is pet friendly for our toy poodle. There is, however, a one off (per visit) charge for pets.
The cabin was very well equipped with everything you need and was spacious with two rooms, double for mum n dad and bunks for up to 3 kids. There was plenty of room in the "family room" - but it might be a bit manic with those 3 kids.
There's plenty of room and activities for the kids outside but, and the town and beach are a couple of minutes drive - you could walk it. In the town, there is a range of shops, including supermarket and restaurants to suit most tastes.