I bought a groupon for 2 adults and 2 children for 28
No entry fee. It's According to which train ride you take as to how much it cost. The shortest ride is $17 per adult.
No entry fee to the museum, but there is a fee to ride the train.
Its been a while, but I believe they are $20 a ticket. The price will be a little more or less depending on the train and event. (Quick ride to the turn about vs the Halloween or Dinner train)
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