Saturday, January 20.   10:30 a.m. – 12:30 p.m.   Thorn Creek Nature Center.   All ages.   Registration required by Monday, January 15.   708.747.6320.

Just like animals, trees have their own winter survival tricks. Come see Thorn Creek Woods for the trees and learn how they protect themselves from the harsh elements. Sponsored by the Thorn Creek Audubon Society. Participants should be able to walk 2 miles outdoors on natural surface trails across uneven terrain. Trails can be wet, muddy, icy and snow covered.