I'd write something about Dark Sun, but it's already been said. This is the Dark Sun reference I use in addition to the Campaign Setting for most of the flavor of the setting we're playing. This can be a tremendous help to anyone looking to develop more of their backstory (hint hint, nudge nudge).
I have started an illustrator file and added a few odd shaped rectangles spaced in haphazard but organic distributions to stand in as buildings. Coast is on the left hand side (west coast) and the lord's house is in the north. There is a boatyard which needs to be relatively near the water, and since it is a fishing town, I figure there needs to be some sort of fish buildings on shore. Cleaning sheds, storage sheds, smokehouses, etc. Maybe a single magical ice chest?
Set out on a Kraken Hunting vessel
combat: ship rescue
skill: kraken ambush!
combat: kraken ambush!
skill: kraken wrastlin' (with or without the ship)
combat: whirlpool (with or without the ship)
Enter Ras Etdeltus, the city below