9-11 a.m. at Longleaf Pine Preserve, 3637 E. New York Ave., DeLand. Hike the Orange Trail at Longleaf Pine Preserve, and discover the beauty of pine flatwoods, oak hammocks and palm hammocks. Hikers will have the opportunity to visit a new section of the trail that has just been completed. Those age 8 and older are welcome; children must be accompanied by an adult. Participants must wear closed-toe shoes. Free. Visit www.bit.ly/green-volusia. Contact Tommy Nordmann at tnordmann@volusia.org or 386-736-5927, ext. 12072.