The pools are all heated. When we were there in mid Dec last year, there were kids in the pools. Now, it was probably only about 65 degrees outside, but they were in those pools!!! When we visited in early Nov one year, we swam a lot. Swimsuits don't take up too much space. And we travel in our heavier clothing...jeans, sweatshirts, windbreakers, then remove them when we get to Florida. Shorts during the day and most nights.