You do have to pay admission per carload. It was $9 (per car) for seniors, that's all I know.
You should go early because the parking lot fills up fast. I was there on a Monday around 11:00 and it was full with cars lined up for a mile along the road.
No, just the $10 parking fee.
No fees other than for parking. Parking fee for non-seniors is $10.
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