On the Sandy Ground                                    -      N      - 
(-------------------------------------------------)     W <---(M)---> -
                                                        -      -      -

The ground here is made of a very coarse sand which stops the growth of
plants before they can even start.  To your west you hear the roar of a
small waterfall and the bubbling sound of a small stream.  You spot the lake
in a valley to your southwest as well.