Pretty neat place to stop at when traveling through Indiana near French Lick. You shouldn’t miss it because there are billboard advertisements for Marengo Cave like every few miles. There are two caves here. We took the Dripstone Tail tour and it lasted about an hour and a half. Our guide was somewhat monotone but I guess she does this all the time so I don’t blame her. Make sure to bring in your jacket and shoes you don’t care about because it’s wet and chilly in there!