Zoo lights are so much fun with 4 year olds. They really love the experience. The night we had picked to go it was supposed to rain. I decided that meant it was the perfect night because it would be less crowded. It worked out great, hardly any crowd and it didn’t start to rain until we were leaving at 8:45! It was the most fun we have had at zoo lights yet. The boys were able to run around, dance, try to jump on the lights shining on the walkways, and the talked to the talking Giraffe forever.