Possible route to Showdown Town?
It seems like it leads to a dead end, but you could always fall into the bottom of the waterfall?
Then theres a route coming out of the waterfalls base, so that how you'd climb out and back to the Homeland?
Its just my idea.
Check out this image:
http://img133.imageshack.us/img133/8...ownpathhn2.jpg
Tell me whatcha think.