Tickets are free. You need to go online and sign up for them. They send them electronically. Make sure you do it as soon as they start accepting requests.
Free
If you are a veteran, you get in any day, any time with your I'D card. You can bring in two people with you.
Don't bother doing anything on line. Show up first thing in the am. They will let you in.
It's free! You can get a pass on online or if you wanna do a standby get there early, they do have extra that they give out but they only have a number of them.
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