For information about Preservation Parks of Delaware Coun-ty, call 740-524-8600, ext. 3.
* "Monarchs & Milkweed," 1 p.m., Saturday, April 13. Ages 10 and up. Learn how to care for butterflies and how to build a collection tank.Participants can reserve a monarch kit for their child's school. Free, but registration is required.
* Golden Marathon, 1:30 p.m., Monday, April 1. Hike for older adults. Deer Haven Preserve, 4183 Liberty Road.
* "Novelty Nose," 1 p.m., Saturday, April 6. Take a hike with a naturalist and, through hands-on activities, learn about the black bear in Ohio. Ages 6 and up. Char-Mar Ridge Preserve, 7741 Lewis Center Road.
* "Reading the Woods," 2 p.m., Sunday, April 7. Take a hike and explore nature, to become more comfortable out in the natural world. Ages 8 and up. Gallant Woods Preserve, 2151 Buttermilk Hill Road.