If you have a season pass or a membership I recommend downloading the app on your phone and it tells you all of the discounts for the month and sometimes the year for free admission of friends discount. Admissions and other discounts for items at the park. My daughter just used her membership gold pass to get her friend in for free this past week. And she was notified by email and indicated on the app
If you have season passes, they should email you when its bring a friend day.
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