I strongly recommend purchasing tickets online in advance. With variable pricing, ticket prices will go up as tickets run low, and on busy days they often sell out (even members should reserve tickets in advance).
For a normal visit, the only additional costs are for the 4-D movies ($4.95, or $2.95 for members) or feeding the stingrays ($5, $4 for members). (There are also "Extraordinary Expriences" like standing in the water and meeting a beluga whale for significant additional cost, and which must be scheduled well in advance.)
There are additional discounts for a variety of people based on employment (educators, police and firefighters, for example), as well as passes available to be checked out from libraries, and discounts for members of other zoos. See the Discounts page for more information.
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