Take a 9-mile guided ride along the Spring-to-Spring Trail from DeBary Hall Historic Site to Lake Monroe Park and back. Arrive back at DeBary Hall in time for an update on Volusia trails with Maggie Ardito, president of the St. Johns River-to-Sea Loop Alliance. Free. Registration is requested for all programs; call 386-668-3840, or email to lperez@volusia.org.