Camping is ace. Children love it, I took my son a couple of times a year since he was three, from about five I took a friend of his aswell and they all loved it. I remember taking one lad, aged 10, from a wealthy family, they had holiday homes all over the world, skiers etc and we went off and had a few days with bikes in North Wales (possibly damp) and when I returned him he rushed up to his mum saying "mum, mum, I've just had the best holiday EVER!"
Another highlight of the year for me was taking the cub scouts camping on the annual trip. In reality we were only about ten miles from where they all lived, but they thought it was a different country. I suspect for some of them it's the only time in their lives that they'll go camping, which makes me both happy and sad.
One thing I've missed in lockdown is going camping (on my own nowadays).