The Riverfront Parks Committee is hosting the fourth annual ChalkFest from 11 a.m. to 3 p.m. on Saturday at the Millennium Circle Portal on the River Common. In the event of inclement weather, the rain date will be Oct. 5. ChalkFest is a free event that celebrates children’s art and creativity while also providing education about nature and the environment. Children of all ages and ability are invited and will be given a box of sidewalk chalk and a designated space to draw. The River Common will be filled with various activity tables and exhibits that promote both creativity and environmental education. The water education program, Hydromania!, will teach children about the properties of water through experimentation. Other entertainment includes a children’s yoga class at noon, a balloon act, a magic show, face painting, mural painting and more. There will also be vendors Johnnie Boys Crave the Cart and The Lands at Hillside Farms Ice Cream truck on site. Some members of the planning committee, from left: Vincent Cotrone, president, Riverfront Parks Committee; Tim Walker, Restored Church; Jessica Kush, Riverfront Parks Committee; John Maday, executive director, Riverfront Parks Committee; Allison Davis, Building Blocks Learning Center; Jeanne Kenney, Riverfront Parks Committee; April Davies, Riverfront Parks Committee; Laura Eory, Riverfront Parks Committee; and Dina Stewart, Balance Yoga Studio.