Fullersburg Woods Forest Preserve is Oak Brook offers a 220-acre prime wildlife haven in an urban setting, hosting a wide variety of wildlife, nesting songbirds and spring and fall migratory birds, especially warblers. It is home to the Fullersburg Woods Nature Education Center, which offers hands-on, interactive exhibits and native wildlife on display, and the historic Graue Mill and Museum, which features the only operating waterwheel gristmill in Illinois in its original spot. The nearby Ben Fuller House is made of small timber and one of the oldest balloon-frame structures in Illinois.

Fullersburg has trails for hiking, bicycling, horseback riding, cross-country skiing and snowshoeing, picnic shelters and areas, and fishing and boating on Salt Creek. 

The oak woodlands and stretch of Salt Creek at Fullersburg Woods are home to beavers, red foxes, herons, egrets, nesting songbirds, and spring and fall migratory birds, especially warblers. The Night Heron Trail is a popular destination for fall color fans, too.