The Lake Superior Zoo has Zoo Tots for children ages 1-3 with their caregivers this summer. Sounds like a fun time with story time, a craft and an animal encounter. There is also time to explore the Zoo on your own.
There is a Cub Club for children ages 4-5 and guardians are welcome to stay or leave them. The classes include Animal Artistry, Bird Bonanza, Australian Adventure, Critter Keeper, and Barnyard Buddies.
Check out their classes. There are many other kinds.