The information includes: area of mosaics? 38,000 square feet. Since the stones come from North Africa, it looks like skilled North African craftsmen were involved. Names of the rooms include the frigidaria, the cold baths. It is there that the bikini girls mosaic is found, in two rows. There is a handball game or exercise going on, and also the giving of prizes.
Since the other mosaics show daily life, such as the more familiar hunting scenes, dining, massages after the meal ("post-prandial" -- before the meal would be preprandial -- either way, nice idea), the women being athletic shows their regular fitness and competitions.
The kind of Roman latrine shown at Romana del Casale is common for Romans, see Archeology Odyssey May-June 2004 at p.53, article, Roman Latrines, How the Ancients Did Their Business, by Ann Olda Koloski-Ostro, illustrating facing lines of boards with holes and openways, a water channel at the sitter's feet for dunking the sponge on the stick used for cleanliness. And windows for good ventilation. A stone bowl, deep, holds all the sticked sponges, handles up, for repeated use. This arrangement is also apparently at Ephesus, more multi-seating facilities. Yet writings of the time reflect a coarser approach, dumping the equivalent of chamber pots out on the street, so more is to be learned.