Indiana tourism sites are taking a hit this summer because of a harsh winter that pushed the school year into June and rainy weather to kick off the season. Parks, caves and historic sites are reporting the number of visitors dropped from last year and think the late start to summer vacation is the main culprit. Revenue also is down at the Indiana Caverns, Squire Boone and Marengo show caves and at four historic sites operated by the Indiana State Museum.
