This 8 acre forest is owned by Manitowoc County and was designated a State Natural Area in 1967. Located on the West Twin River, Cherney Maribel Caves contains a 50-foot limestone bluff, a rare occurrence within the glaciated region of Wisconsin. You will also find many varieties of birds, ferns and trees as well as some endangered species. Public tours by appointment and on weekends when a volunteer is available, April 1-October 31. 6 am-8 pm

Located within Cherney Maribel Caves County Park, Manitowoc County. From the junction of I-43 and State Highway 147 one mile east of Maribel, go east on 147 0.3 mile, then north on County Highway R 0.6 mile to the entrance of Cherney Maribel Caves County Park, proceed 0.25 mile to a parking area, and hike east into the natural area.