Today I turn thirty! *bounce* Tonight the fiance's taking me out to my favorite restaurant and next weekend we're going caving. I love caves. They're such amazing environments and they appear fairly often in my stories.
I like writing caves because they're something of a foreign world. We're pretty much made to get around on the surface of things and once we go underground we're forced to adapt--much like going underwater. Still, they exist in our world; we're familiar with them and some of what we'd find there. I think they create a sense of the alien without needing reams of description.
Are there types of terrain and landforms you find popping up in your stories? What makes you keep writing that place or setting?