http://www.cincinnatizoo.org/plan/zoomap��I m not really comfortable recommending parking on the street and walking alone in Avondale after dark. Is parking that expensive?
Do you have a gun? Make sure you bring it! J/K..... But in all seriousness, as someone else stated, you probably would not want to be messing around in Avondale after dark, especially if you are unfimiliar with the area.
the zoo does have a pedestrian entrance. However, i agree with the others, don t be alone in Avondale.