I have never stayed at Boardwalk, we are new DVC members so I really can't comment about each particular pool, but I think all WD hotel pools are heated. My husband and I have taken three trips in the last three years at the moderates, once in Oct. and the other two times in December. We have gotten to swim at some point on all three occasions. I was born and raised in that area of Florida, you can never say for sure what the weather(temperature) will be like. But I would just plan to swim in the afternoon as a break from the parks, or depending on your arrival time, maybe the day you arrive. I would think if you're from the New Jersey area, that you will find it warmer than those of us who are not used to that cold of a climate. Have a great time on your trip!