There is a children's garden that has a current theme of trains, as well as an exhibit garden with the Moby Dick theme. My kids love the fish ponds, the little stream and running up and down these hills.
Here's the white whale himself. Isn't this amazing?!! It's all out of twigs. When I visited the gardens a few years ago the exhibit was out of actual cars that had been "planted" the ground. Really cool.
Cute little house at the end of a maze of walkways separated by really cool prairie grass. I didn't get any pictures of the best part- the butterfly house. There is a U-shaped walk inside with a butterfly habitat. There are so many butterflies in there that they land on the ground, the walls, and on you. It's nice and warm and has lots of flowers and trees and bowls of sugar water. The colors and sizes of all the butterflies are amazing! I don't stay too long in there as I constantly worry that someone is going to step or grab one. :) There is also a case of all the cocoons so you can usually see several butterflies emerging and drying their wings. So cool! (Compared with BYU's Bean Museum- the good ol' Y is sadly lacking :)