There were many, many pools throughout the temple complex. There were change rooms and pre-pool pools where people would get cleaned before entering the main pool. These pools are quite warm and all naturally heated. While the pictures look kind of ugly, it was absolutely fasicinating being there. I really couldn't get enough of it! There were little video recreations of what the romans would have done there and it showed them jumping and frolicking andplaying games in the water. Crazy to think of people goofing around in these pools over 2000 years ago. CRAZY!