Its 830 my family has been there as late as 9pm but Im sure 830 is official closing.
Im sitting at a computer on their website and it is difficult to say! I would say dusk is the safest bet! ..about 8pm this time of year.
I was there a month ago, and they close at 8:30pm. I got lost and was running towards the parking lot while yelling for the ranger not to lock the lot with my car in it. It was 8:55pm when I made it to my car. The ranger was super nice.
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