Octaves
	How smooth are hills really?
	local gradients are everywhere
	We'll need smaller faces again to see this
	
Higher octave = go through the noise function faster
	Minecraft uses the term octave, so we will too
	Really doesn't have a lot to do with waves though...

Back to the "away from the water" part:
	Let's flatten out the edges along the water

Could we make a a list of locations that need to be eroded?
	Sure
	Less affect at each level

Then all the faces in the list need to be moved