This place, located in a historic building, transports you back in time but inside it is both…read morebeautiful and modernized,like what you'd find in a much more expensive spa.
You can go to swim laps or participate in an aquagym class but I recommend taking advantage of the other amenities offered.
For 22 Euros your can use the Roman baths, the salt cave, hammam, sauna, outdoor heated pool and area.
Try going during the week as the experience might not be as pleasant when it's crowded.