The Spa pool is heated from underground due to the hot rocks that lie beneath the ground in turn pressure build up forces the water out through the vents, in the process the water disolves minerals (i.e suphur compound, Co2 etc) along the way to bring out the kind of properties needed for a therapeutic experience and also belived to have medicinal value. i.e skin ailments, rheumatism, stiff joints, muscular pains, muscular tension also rid the skin off marks the natural way.
