Icy Trail                                              NW     -      - 
(-------------------------------------------------)     - <---(M)---> E
                                                        -      -      -

Only the mouth of the cave was particularly narrow- past it, there is
room for several people, and as the trail winds its way southeastward, it
only grows larger.  The entirety of the cave is saturated with an icy blue
haze, diffused by the uncountable microscopic frost crystals between the
chilly polar sun and your eye.