My husband and I brought our 6 year old science-loving son to Fernbank and We all had a good time. We only spent 2 1/2 hours there, but you could easily spend 4 hours. My son loved all of the interactive science exhibits and the playground on the 3rd level. I thought the Georgia exhibit was interesting and my son liked the rocks. We only spent about 30 min outdoors because it was hot and we were ready for lunch, but the outdoors looked awesome and really expansive. My son loved the outdoor playgrounds, and it was mostly shaded. The staff was all friendly, the museum is clean and well maintained and the food prices are very reasonable. I would recommend a visit for families with elementary aged kids. We will plan to visit again.