Join The Geographic Society of Chicago, Chicago Park District, The Wetlands Initiative, and many other community science organizations for a day of fun at Big Marsh Park, one of Chicago’s largest outdoor spaces! Participate in arts and science-based activities with Calumet region scientists and attend guided walks to record nature observations! Big Marsh Park features walking, running, and biking trails that attract outdoor recreation enthusiasts of all skill levels. It is also home to a wide variety of wildlife including amphibians, reptiles, insects, mammals, and birds.