It's not really warm though. We were there last week and my kids and husband swam in it. They were chilled after they got out so they switched to the hot tub. Now that was heated.
Yes it is definitely heated. I have swam at that pool in winter and fall months when it was freezing outside and the water was nice and warm. Now there was one visit when the heater was faulty and the water was pretty cold. But other than that, my other six visits have yielded nice and warm water!