Hévíz is one of the most popular spa towns in Hungary and Lake Hévíz is not only the largest thermal lake in Europe but belongs also to the important natural resources of this region. The waters which contain sulfur, radium, carbon dioxid, calcium, magnesium and hydrogencarbonate have curative effects and contribute to the success of the treatment of rheumatism and diseases of the locomotor system. It is also used for drinking cures and inhalations.