Saturday, June 17. 1–4 p.m. Free! Ages 10 years or older. Registration required by Friday, June 15. Call 708-747-6320.

Join us for a guided tour of the wet areas of Thorn Creek Woods.  Discover vernal ponds, listen for the return of amphibian choruses and explore the marshes of Owl Lake and beyond. These low lying areas provide vital habitat for woodland creatures and are an integral part of the Thorn Creek ecosystem. Participants will enjoy a 3 mile hike on natural surface trails across uneven terrain.