9:30-11:30 a.m. at Lake Monroe Park, 975 S. Charles Richard Beall Blvd., DeBary. Discover native plants, wildlife habitats, the history of the area, and how what we do at home affects the water quality of the springs. There will be several stops along the way and a talk at Gemini Springs Park. The total round-trip ride is approximately 5 miles. Those age 12 and older are welcome; children must be accompanied by an adult. Participants must bring their helmets and bicycles. Free. To reserve a spot, contact Holly Giles at 386-736-5927, ext. 12330, or hgiles@volusia.org, or visit www.Eventbrite.com.