Heartlands Conservancy is hosting a Full Moon Hike from 8-9:30 p.m. May 5 at Stemler Cave Woods, 2200 Stemler Road, Millstadt. Attendees are asked to dress appropriately for weather conditions and wear comfortable walking shoes, with good tread. Flashlights or headlamps are recommended. Donations are accepted but not required. Registration is required at heartlandsconservancy.org/event/full-moon-hike-stemler-cave-woods.