The SD welcome center told us about this Arena that gets covered in corn every year and since we have seen corn for the last 4 states, we had to check it out. It was a pretty cool side attraction but The Badlands were the main event. We were not even going to go originally but a good friend told us how great it was and we are happy we took their advice! We even boondocked just outside the park with other wild campers and a view that you will never see in a campground!