From the park's official blog:
Although Thunderbird’s First Flight Auction has concluded, there are still plenty of rides to be had during the rest of our Media Preview Day on Thursday, April 23.
Would you like to be one of those riders? You’ll get to ride all day long on Thunderbird, Voyage, and Crow’s Nest, take a behind-the-scenes tour – plus we’ll throw in a few surprises. Oh, and some really good food. Including Thunderbird Ice Cream.
All it takes is a $50 donation per person and we’ll add you to our Guest List for the day. (Participants must be at least 52″ tall but no taller than 6’6″ to ride Thunderbird.)
The deadline is Sunday night at 11:59pm CDT.
Get the details from Holiday World's HoliBlog.