I take my son here at least 3 times a year. Go in the morning when it is cool, as this is the best time to see the animals actively moving about. If you are lucky, you can see one of the docents giving a demonstration or showing one of the animals outside of their exhibits. They are full of information and will let the kids pet and interact with the animals if it is possible. Bring a picnic lunch and finish your day eating and playing on the playground. Little ones will enjoy the quick little train ride around the museum. A great morning for kids!