Look again, go down to the river, then keep walking east, as far as you can go.
Eventually you'll find a little house, with a tiny jetty.
There's usually a white woman & a black guy living there (with washing drying on the line) and a small collection of chickens.
The black guy keeps saying, "and no-one knows she's sleeping with the help", (or similar).
He keeps walking around the back of the little wooden house and digging in a tiny piece of dirt.
On the (outside) wall, facing the waterfall, there's the graffiti.
As soon as you see it, you'll be surprised, as it's hand-written.
And is completely out of place for the game.
Seek & you will find ;)
