At the level of Sustaining Membership, we offer you unlimited visits for one full year for you and one guest for $75.00 annually.All you need do is simply present your Zoological Society Membership Card at the gate, and you and your guest may enjoy all our Zoo residents all year `round. Of course, you will also receive an annual subscription to ZoonooZ and to the Humane News. Your membership at this level provides greater support for our animals than at the three previous levels, for which we are very grateful.