The website ticket purchasing part is not working. It says no open slots available for any days that we try. Can we purchase the ticket at the entry?

Yes recommend going early I went at 9:30am the day I planned to go

Even if u r palmdale & Lancaster resident u have a Xtra discount

Yes you can go there physically and buy ahead of time. If you go same day to buy the ticket it is usually sold out.

Only open Friday, Saturday, Sunday till labor day. Because kids back in school