One of the settings in my book is a set of caves that Emma and Will must negotiate in the dark to escape being turned into ghosts forever. I didn't start off with a real, determined location, but after falling upon an article describing the beautiful caves in the O'Bannon State Park, I became so excited with the idea of using such a location in my book. I never mention cave specifics, but did write about an indoor mountainous structure located in the Wyandotte Caves called Monument Mountain. Of course my next thought was to have my characters end up in this wildly fantastic hidden apex of the middle earth. I'd love to go see it some day.
Unfortunately, and this does sound funny when I say it, but a bat fungus has closed many caves to visitors in the last few years, so it may be a long time before I get to see my fictional character's real-life location.
It's so hot today that I would take a cave over a house. But the bats . . . well, yeah, I'd have to say no to bats.