Well if you want AI that doesn't roll up the sidewalks at 11 i would agree with Bostonbob on Hedonism.The party almost never stops and there are people there of all ages,been 10 or 12 times ourselves.For beach dwelling nob AI i think Coco is a great choice and you can go to the Jungle night club,Alfreds and Bourbon Beach for some great late night partying.Stayed at Fun Holiday also and it sounds not quite what your looking for.Really lots of good choices.