Join our friends from the Knox County Park District for a Once in a Blue Moon Hike – March 31, 8-10 p.m., at Thayer Ridge Park (7770 Thayer Road). This blue moon hike is a great way for a family to experience the out-of-doors after dark and hone those non-visual senses by using your ears (for hearing), fingers (for touching), nose (for smelling) and even your mouth (for tasting). Thayer Ridge has great open views for moon ogling and stargazing!