Wisconsin contains numerous natural areas and historic sites away from typical tourist routes. Geological features include Cave of the Mounds with limestone formations, Parfrey's Glen with an 800-foot gorge, and Pewit's Nest State Natural Area with sandstone cliffs. The Apostle Islands Ice Caves offer seasonal ice formations along the Lake Superior shoreline. Rock Island State Park and Schoolhouse Beach on Washington Island provide access to remote islands and coastal areas. Devil's Lake State Park and Blue Mound State Park feature trails through varied terrain.
