BAR HARBOR — The second annual Mount Desert Island Jingle Jog and Walk is set for Saturday. The 1-mile, noncompetitive jaunt starts near the Maine Sea Coast Mission at 127 West St. in Bar Harbor at 4 p.m. In lieu of an entry fee, participants are encouraged to take new unwrapped toys that will be donated to the Maine Seacoast Mission’s Christmas Program, which distributes toys to local children in need.