Great story, arguably the best creepy pasta ever written. I know several people before me has asked, so I'll just do the same; Does the place really exist?
Like many before, it has plagued my mind as well. I actually Google Earth'ed Emerald Isle, and it doesn't look big enough the hold a Disney attraction, thou the only odd thing about the place that I found was that the southern tip of the island was completely white, and if Disney had made it so that the island in the Bahamas holding Discovery Island is mostly pixelated, then there's no telling what they'd do to make that MP is completely wiped off the map (*Thou more likely its just all just beach at that southern tip, and private property*).
I know its silly too ask about it since there's a inter-dimensional Mickey Mouse costume and a 80 ft snake, but then there's little details in your story like that whispering in one of the resort rooms, like the fact that it isn't verified who or what is in there, or if there's whispering at all, that it may have been in the guys head! Stuff like that makes the story feel like it has been experienced firsthand by the writer (or whoever told him his experiences)...or maybe your just a genius who knows how too draw the reader with detail, making the situation in the story seem credible and real.
Either way, here's my email: oriatisnorai@gmail.com