The schedule of events is subject to changed based on the status of the coronavirus response, weather, staffing, and other situations that may arise. If Calvert Nature Society or Calvert County Natural Resources Division cancels a program, a full refund will be issued. Summer 2021 program registration (including Summer Camps) will open April 12 for members, April 26 for nonmembers. Join now to take advantage of the early registration period. Schedule is subject to change. Download the Spring Program listing Dec. 10, 2020: We have new policies. See the Calvert Nature Society's for our COVID policies for all in-person activities |