Went there today with four kids. My eldest enjoyed it and said the castle and garden was beautiful. My nine year old said it was boring and he didn't like it. My youngest liked going through the 800' underground tunnel the most. I thought it was an okay day trip and learned about Sir Henry. I bought the City Pass. I don't think I would pay regular admission rates to go there. Lots of walking around on stairs. I think the zoo and science centre will be more interesting for the kids.