There are two areas, one is geared towards younger children, the other is for children 5-7 with adult supervision, 8 and older can go in on their own. Children younger than 4 are not permitted in the older kids area, even if being carried or in a stroller--I could see this being a real conflict depending on the age of your kids. There was so much to do--play instruments:
Brush the orangutan's hair at the salon
This is the room for the younger children. There are different stations with games and activities, and a wonderful reading area under the loft (the loft is for special activities, I'm not sure what). There was also a sort of human kaleidoscope--three large mirrors arranged in a triangle, you stand inside of it to see hundreds of yourselves.
Ivy enjoyed everything far more than Miranda--but Miranda was able to go off on her own and find some books and magazines, so the whole thing worked out well. And free! This was as nice as some children's museums we visited and well worth the 25 minute drive. We'll definitely be back.