During the summer, the park is closed Fridays, Saturdays, and the day prior to a holiday. Other than that you'll need a permit to camp overnight, since there are rules and regulations to follow.
There is no camping so arrive super early or you will not get a good spot
I went last year at 5 am to get a spot, just go early
I dont believe there is overnight parking it closes from 2-4 am i think i saw a sign
I really don't know I was just visiting, sorry
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