There's two nudist resorts in NW Indiana. You'd probably enjoy Nudes a Poppin' at Ponderosa Sun Club in Roselawn, IN (nudes-a-poppin.com). I was there a few years ago and there was a whole lot of skin showing, both on stage and off, both men and women (though a whole lot more women). As for glory holes, you might want to try cruisingforsex.com.