To see Rock City lit up with Christmas lights and designs at night is such a treat. We took our daughter there last Christmas and it was such fun. You go through fat man's squeeze and look over all of the rocks down into the valley and are surrounded by the holiday lights.
You cannot take a stroller, so we had to carry her with us but it was worth it. If your kids are at a walking age take note there are steps and the line of people is pretty steady. There is a stop to have your picture with Santa as well.
Of course this park is open all year and you can see all of the 7 states from up there, but it is especially neat during the holidays.
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