Yes, there is. It is not quite as cheap as child's ticket. I bought mine at the ticket booth.
I'm not 100% certain but I havent seen a senior discount listed. However, I found that tickets were a couple dollars cheaper if bought online I believe. My husband and i paid the $15 a piece but I went to buy tickets on website and it listed them as $12.86 as I added them for purchase....so i guess it's an online discount.
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