Learn about the Adopt-a-Trail program and the invasive species of Caesar Weed, and remove it from the hiking trail. Cool off with lemonade among the Longleaf Pines. Supplies will be provided to make ID cards with photos of common invasive- and native-plant species in the screened pavilion. Participants are welcome to bring their own photos to make extra cards for their collection if desired. All ages are welcome; children must be accompanied by an adult. Free. Reservations are required. Contact Holly Giles at hgiles@volusia.org or 386-736-5927, ext. 12330, or search for Green Volusia events on www.Eventbrite.com.