The park is free all the time.
It depends on the event that you are attending. If it is the Jazz Festival, you need to go to their website. For music in the park, you need to do the same.
The park is free, there are some food places. The partk Is really to hike and rest.
The park is free. Different events have different prices and you would have to look up the event you are interested in to find pricing.
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