Crystal dragons build their lairs in underground grottoes, where they cultivate environments of great beauty. Their exacting standards and vivid imaginations mean that they are always working to improve the appearance or layout of some part of their lair. These lairs are unique to each individual crystal dragon, but there are always plenty of reflective surfaces that allow the dragon to observe their own appearance. These range from crystals to reflecting pools to finely crafted mirrors, which are arranged throughout the lair in a pleasing array. Gifts of well-crafted or magical mirrors are an excellent way to curry favor with a crystal dragon.