I don't really consider myself a zoo expert, but I have seen a few, and the zoo in New Orleans is a great one. We were there for about 2 1/2 hours and didn't come close to seeing it all. It was clean and on the day we went it was not crowded at all. It was a very enjoyable day.
Seeing all the animals was fun, but looking at all the old trees was hands down my favorite part. I can only imagine how old all of the trees are. It is awe inspiring to think of what they have lived through. I can only imagine how many people have sat on their branches and relaxed in their shade. The Louisiana swamp area of the zoo was very realistic. I think we saw that house on our way to New Orleans. They even had a swamp monster on display.