Google Bishop's farm there's a calander on there page what days are free parking cost for attractions and petting zoo there's fruit stands pies food apple cider great place for the family
For the month of September it is free although some areas require tickets to access like the petting zoo. As I understand it, starting October, you will have to pay to park as well.
Ben pretty much said it as well as I could have. I hope you enjoy it!
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