The Airy Hollow

This vast cavern is composed of a large chamber with open passages allowing access in the four cardinal directions. The ceiling is solid, so it should make for a fine shelter should the weather take a turn for the worst—though being caught outside a Safe Area means you can't afford to get too comfortable, even if you're just waiting out the rain. Multiple exits make access convenient, but that cuts both ways. With openings on all sides, an ambush could come from just about anywhere.