Every Thursday at 11 a.m., Cylburn Arboretum hosts a Nature Story Hour for preschool children and parents. The hour follows a set theme as reflected in book choices and activities pertaining to nature. Now that the weather is warmer, an outside activity will be part of the hour. If you decide to bring along a picnic, tables are available. Discover Cylburn! Free. Donations accepted to help support educational programming at the arboretum.