The Lake Renwick Heron Rookery Nature Preserve, the former site of Powell's Mill, on Renwick Road, and Copley Nature Park, on Route 30, give visitors the opportunity to observe five species of birds breeding on islands in the middle of Lake Renwick. Viewing scopes, guided tours, and interpretive signage all enhance the viewing experience.

During the height of the breeding season, May-July, the islands are alive with hundreds of nesting great egrets, great blue herons, double-crested cormorants, black-crowned night herons, and cattle egrets. Lake Renwick Heron Rookery Nature Preserve is open to the public for bird viewing every Wednesday and Saturday from May through mid-August.

Visitors can also enjoy the Lake Renwick Bikeway, a 2.9 mile asphalt trail suitable for all non-motorized, non-equestrian use. The Bikeway is open year round and can be accessed at the Renwick Road entrance to the preserve.

Turtle Lake Access, located on Lockport Street, offers free shoreline fishing and access to the bikeway. For more information, contact the Forest Preserve District of Will County at (815) 727-8700 or visit their web site.