Graesyn Steinkoenig dumps a bucket of water into a waterfall while playing in Cummins Child Development Center's Nature Explorer Outdoor Classroom in Columbus, Ind., Tuesday, Sept. 20, 2016. The classroom was designed as a way for children to interact with and learn about nature. The children explored a mud pit, played with frogs and splashed each other with water from a fountain. Mike Wolanin | The Republic