$10 over the age of 3....during the week they have guided tours that are only at certain times. on weekends it's self guided and they open at noon. their website has all the information.
$10 for adults and $5 for children. I went there during the week but I don't know if they are open every day during the week.
I think on the weekends only if it's not raining. If I remember right, it's like 8 to 10 bucks to get in
Thanks! Your answer is awaiting moderation.