A Moss-Covered Pond                                    NW     N     NE 
(-------------------------------------------------)     - <---(M)---> -
                                                        -      S      -

The caves in this section of the mountain are completely unlike anything
you've seen before.  Although the igneous rock walls make it quite obvious
that the chamber was formed by volcanic activity, there are a variety of
plants growing everywhere.  The room is filled with water, but a thick layer
of moss is all over the surface, allowing you to walk on it safely.  The
moss seems thinner towards the center of the pond, and you decide that
sticking to the edges might be a good idea.  There is a large hole in the
center of the wall to the south.