<icon> Water appears in the game as large bodies that will fill areas of tiles up to a particular depth. Water is an aggravating obstruction for your dwarves, but is also the source of Fish. Currently the only way to cross water is to build a bridge through it, which requires a lot of stone. A couple of other methods may be implemented in the future, such as researching and building rafts, and a particular clan of dwarves may have the ability to swim.