Learn how to tap a maple tree for sap, watch the sap boil, and taste fresh syrup hot off the fire at the annual Maple Syrup Festival at North Park Village Nature Center. There’ll also be music, arts and crafts, campfires, storytelling, and a farmers’ market, plus pancakes with real maple syrup for sale. Sat-Sun 10 AM-3 PM, 5801 N. Pulaski, 312-744-5472.