Mushroom experts Phil Tedeschi and Kirk Coppernoll lead a search for mushrooms and help participants identify what they have collected. Bring waxed paper and a basket or paper bag. 2–3:30 p.m., Eddy Discovery Center, 17030 Bush, Chelsea. $2 (families, $5); preregistration required at [email protected] (include name, phone number, and number of attendees). $15 Michigan recreation passport ($20 at the gate) required.