Celebrate fall and get out in nature in the Garden’s McDonald Woods. Join us for a guided walk at 1 p.m.—approximately 45 minutes long and about 1/3 mile long—and learn more about seasonal changes taking place. Before or after our walk, warm up by the fire at the McDonald Woods Shelter. Dress for the weather. If winds are 20 or more miles per hour or if there is heavy rain, the program will be cancelled. Free; regular parking and admission fees apply.