I adore the Florida Keys. Especially in November. It's off-season so rates are very nice. We go to Marathon Key which is in the middle of the keys and the rest of the keys are at most an hour away. Lot's of stuff to do, Dolphin Research Center, beaches, maritime museums, shopping, etc... Weather is usually in the 80's during the day, mid-60's at night. Great restaurants in the area. Really a good time. :)