So I've decided to run some figures for those who are interested:
Number of students: 576
Assuming that there are 4 students per room, then...
Number of rooms utilized: 144
Now, with that many students, and that many rooms, I think I could safely make the assumption that the school will be reserving a block of rooms in a value resort.
Now, each building of every value resort has a total of 263 rooms. Since Interruption? did not mention how many chaperones there will be, I cannot say how many more rooms will be occupied by chaperones. Assuming they have 1 chaperone per 15 students (which I think sounds relatively reasonable- if it's way off, please let me know), and wanted a round number for filling each room, that would be 40 chaperones, meaning an additional 10 rooms.
So here's my take (as a CM) with the toga situation:
I think it may be a bit out of line. Forget the adults- think of the children that may get freaked out about a wave of "big people" wearing bed sheets. If it is the least bit disruptive, then lifeguards may appeal to a manager, who would appeal to security and a resort manager. Doing this may have drastic consequences, such as being removed from the Walt Disney World Resort entirely. And I agree with some others (I'm a college student, btw)- 576 seniors, toga parties, and no alcohol? Bull hockey.
Now, excuse me for saying that you are an absolutely stereotypical high school student, but you are not thinking rationally. You see nothing wrong with the situation. Try to think of how you would feel if you were a parent with young children, relaxing by the pool as a break during the day. I'd be terrified for my children.
Oh, the worst-case scenario (because I haven't even mentioned that)- your school could be blacklisted from your actions. Yes, Disney DOES blacklist. Yes, they HAVE blacklisted people and schools. You could be doing a huge disservice to your school (and give your school and your school district a bad name).
Doesn't that sound LOVELY? Is it worth all that now?
I understand the idea of it being "fun". But you'll have plenty of opportunities in college to commit sophomoric acts of stupidity.