The park contains more caves than any other state park in Iowa. A trail system links the caves, formations, and overlooks while providing a scenic hiking experience. Many areas on these trails have seen new construction, making the journey to the caves safer. Most of the caves may be entered by persons of average physical ability, but some are more advanced. However the park's caves were closed to humans between 2010 and April 2012 in the hopes of protecting the resident bats from white nose syndrome.