Next stop: Bedford, Indiana. Yep, the home of Indiana Limestone. It also was the home of more caverns! yay! This time, our cavern tour was entirely by boat. Yep, we went down into the US's longest underground river. We bumped along in a big metal tub with our guide, a boat light and a flashlight. It was a little funny, but very cool. We learned a lot about the ecosystem that can exist in complete darkness, and the oddities that have adapted to teh lack of light. There were little transparent fishies that are blind, crayfish that can live for three year without food by eating thier own claws (they wait for food to come in with flooding), and bats and frogs that come in in the winter to escape the freeze. It stays a chilly
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