The Passage to Atlantis                                NW     N     NE 
(-------------------------------------------------)     W <---(M)---> E
                                                        SW     S     SE

After searching the vast oceans, an immense hole opens in the ocean
floor, leading down into the unknown.  A glimpse of a creature floats by
below you, it appeared to be a merman, but those are just myths.  The ocean
here is strangely calm, a sense of serenity overcomes you.  Thought lost to
the world forever, this must be the greatest city ever recorded, the lost
city of Atlantis.