We always go to the smallest pool at the resort since they are usually warmer. Less water means it takes less time for the sun to warm it up. I actually started carrying a pool thermometer with me on our trips so I can see just how warm the pools are. Not all are the same. We found the pools at FW very nice last year during the last week of March.
i have always felt the forts pools were only heated by the sun. yeah, when it is really hot they are ok. but, go on a day that is cooler and well, take a bike ride .
Yep, probably during the summer they don't heat them (no reason to), but I've seen the pools steaming during the winter, so they are definitely heated.