A Misty Swamp                                          -      N      - 
(-------------------------------------------------)     W <---(M)---> E
                                                        -      S      -

Your feet disappear beneath the shallow waters of this unnervingly
tranquil area of swampland.  The waters may be home to any species of
poisonous creatures although a thick layer of mist above the surface
prevents you from seeing anything which may be crawling around underneath
you.