Do they have senior memberships and how much are they

Yes they do, there not too expensive but im not sure how much

For a single admission, sr price is $13, a $2 discount. For memberships, no sr price break. Grandparents plus kids is same price as family membership $139

Seniors are $13, $2.00 discount

Senior Admission Ticket Price: $13.00 Grandparent Membership Price: $139.00

They do have senior prices. Im not sure how much they are though