Cache River State Natural Area, Illinois and 50+ Secret Places in America That Most Tourists Don't Know About

There are a number of famous swamps in Illinois’ Cache River State Natural Area, a nearly 15,000-acre state park 30 miles from the Kentucky border. They include Everglades and Okefenokee, but one of the northernmost examples of a true Southern swamp is the delightfully under-the-radar Cache River park. It gets only about 200,000 annual visitors — that’s about one visitor per acre per month.