Instructors Liz Malanaphy and National Park Service Rangers help students become a National Park Service junior ranger and learn about the natural and cultural resources of the St. Croix Riverway through art. Enjoy outdoor activities and hands-on experiences, then create art inspired by what you learn. On Thursday, the class will meet at the Stillwater Boom Site for a morning on the river with a National Park ranger. A swearing in ceremony open to family and friends will be held on Friday.