Pity Disney doesn't own The Wizard of Oz, it would be interesting for a theme, yellow brick pathways, etc. You could have Munchinland, Emerald City, Winki land, etc. The pool could be themed with a Twister style water slide. A great poolside bar, modelled after Dorothy's crashed Kansas house. Plus, think of the cocktails, "Oh waiter, I'd like two Flying Monkeys please, a ruby slipper and a Glindapolitan"
Then for food, well, there's endless possiblities, the Wizard's palace. "Should I save room for Aunt Em's warm berry cobbler with vanilla sauce?"
Then again it could be amazingly cloying after a while.
So my alternative would be something Roman or Mediteranian. Given so much is known about Roman style with Pompeii and it was a waterside town, there would be more than enough basis for coming up with some very nice designs.