Join horticulture staff on a walking tour of America’s second oldest cemetery and National Historic Landmark. You will see the best of autumn color, a variety of champion trees, multiple lakes, and serene landscapes and learn what goes on behind the scenes to keep this officially sanctioned arboretum in tiptop shape. Walking for 1½ miles is required. Dress for the weather and wear comfortable shoes. No refunds. Location: 4521 Spring Grove Ave, 45232.