I didn't even know they had meetings for kids that age. They do not have them around here.
If there was one here I'd take my kids though - 100% certain I would. They are 4yo, 9yo, and 11yo. I would assume it is a lot of play and art therapy type stuff. We used to have a group for kids that age surrounding divorce and that is what it was like. They didn't do it last year but will send mine if they do it again this summer.