Summer, winter, autumn, spring. During school holidays, on long weekends, or during the school term itself. When do you find is the best time to go on a family holiday? Are the peak seasons popular for a reason? Is it all to do with the weather? Is it even necessary to wait till the school holidays?
I think it's nice to take the kids for a long weekend that you create. Perhaps take the Monday or Friday off or both. Drive somewhere a couple of hours away with a beach and kids play area. If you go in school holidays it will be too packed, too loud and too expensive.
I quite enjoy going on camping holidays in the winter. Some people think we're a bit mad for doing that because it's cold but we're in Queensland but I prefer it to camping in the summer heat. It's also less crowded in the camping grounds, especially if you can going during school term time.
Since I work from home and my time is flexible, I like to take holidays outside the nominated school holidays. Accommodation and flights are cheaper and so you can get more for your money. I have taken my son out of school several times to go on holidays. He usually takes some homework with him and luckily he is a good student, so I've never had an issue with him falling behind at school.