The grand ducal palace is now an exclusive spa medical spa that specializes in the diagnosis and treatment of obesity and overweightwithin the wellness center and spa where propotete benefit from turkish bath relaxation area spa and swimming poolsthe thermal waters of bagni di pisa sources belong to the class of calcium magnesium sulfate and gush to the surface at a temperature of 38 c their peculiarity is the high concentration of magnesium which acts on the body by promoting relaxation