The Forest Preserves of Cook County invites the public to discover the flora and fauna of the urban preserves with a special day of activities during the annual Nature Block Party from 10 a.m. to 2 p.m. on Saturday, May 13. Nature Block Party is free to attend, and will take place at Eggers Grove, 11201 S. Avenue B in Chicago’s East Side neighborhood. During the event, attendees can enjoy a variety of activities, including hikes highlighting the Calumet Region, biking along the Burnham Greenway (bikes will be provided), as well as restoration projects such . . .