I would say 4 is a little young for the Castle. There are a couple of activities you could do with them but when my middle child was 4 and we brought him there it was definitely limited for him where as his older brother was able to do a lot more.
You could roller skate with them. Game room for little older. Go carts an adult would have to ride with them. Laser tage room no. Free fall no. Zip line no. There are new rides outside yes. Not sure about ball pit they might be the there. Mini golf yes n no. More ride ate just added
Yes it would
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