Do they close and can we camp with are ten

Yes they do close but during the winter they will post a sign. If you want to find out you can visit the CHILAO visitor center and they'll give you the exact date and more info. It's open now but they fill up very quick so you have to get there early especially on weekends. It is $12 per night.

Yes and Yea

They close mid November and yes, you can camp with your tent.

Yes its 2 cars per spot. You need to bring cash to put money in the envelope that is at the entrance $ 12 per day you deposit the money how many days you are going to stay and you put the receipt in your spot and they check later