We had a zoo membership that has AZA reciprocal admission so we used the pass at the Milwaukee County Zoo. We had stopped at the Jelly Belly Visitors Center in the morning so it was around noon when we arrived at the zoo. It was hot enough that we debated even going to the zoo or waiting for the next morning to visit. Since it was supposed to rain the next day we put on our sunscreen and hit the zoo.
Our admission was free for the three of us but parking was still $12. IF we had paid admission is $14.25 for adults and $11.25 for kids ages 3-12. We would have paid $51.75 for the three of us to visit the zoo, glad I paid $12.
As I said it was hot, so we alternated into buildings whenever possible. In spite of the heat the animals were very active.
We stepped into buildings to break up the heat.
The hippo had the right idea, we needed to cool down somehow.