My boyfriend lost his ID, is there any other way to get into the park after 9 pm ? He is 23 years old.

Check with security

They may have security lost and found. Check there. Good luck.

I don't think they id u at entrance

Without ID he will get into the park. He will just be unable to purchase any alcohol.

Paint his hair white and walk him in using a cane, Lol . Hope he finds his ID, very necessary in Vegas