The free event will run from 9 a.m. to 1 p.m. at the 721-acre preserve, located at 3190 W. Rockton Road, Rockton.
Families can visit 12 learning stations, including chances to learn about birds, mammals, forests, archaeology, water protection, seeds, butterflies, raptors and soil ecology.
Children will receive a passport booklet with facts and activities that they may have stamped at each station.
“Kids and adults enjoy visiting the learning stations, taking a wagon ride and walking through the prairie with a guide who tells them about the wildflowers they see along the trail,” Kim Johnson of the Natural Land Institute said in a news release. “Our hope is that their experiences at Family Nature Day will lead to a better understanding about nature so they’ll fall in love with it and want to protect it.”
The Nygren preserve is the largest wildlife preserve owned by the Natural Land Institute, a land trust based in Rockford.
Registration is requested for Family Nature Day by going online to naturalland.org. For more information, call 815-964-6666.