I was already working on an island type map; so I'll just try to import some things and resize it.
Too the person who had the Hotel, you might want to work on a few things quickly such as:
From what I could see, you didnt' use displacements, which is fine but your island looks kind of bad if you are in the water.
There is an area that is basically just a tunnel with no water as in -------Water Water::::::Water -------Water
the :'s is just a big empty space. It can easily be fixed . A few other things were bugged such as the vending machines allowed you to walk through them. But other than that I really enjoyed exploring that map .