Rune River                                             -      -      - 
(-------------------------------------------------)     - <---(M)---> -
                                                        -      S      -

You are drifting upon a fast flowing river through Rune Forest.  Below
the surface of the river are many weeds and small fish.  On either side of
you are steep, muddy river banks overshadowed by tall pine trees, whose
branches loom overhead.  You are prevented from swimming upstream by the
powerful current.