Tourism’s new buzz: Product development: Officials want to build on Indiana’s unique assets
Billboards in southern Indiana used to tug spelunkers in four different directions. Come to Marengo Caves. Spend an afternoon at Bluespring Caverns. Visit Wyandotte Caves. Don a headlamp at Squire Boone Caverns. Two years ago, however, operators at the four attractions decided it might be a better use of cash to market the area as a single attraction. They pooled their advertising budgets and printed a brochure that listed all four destinations. They also created a passport that visitors could…