Lake Hévíz among Rotatorias as well ("Epiphanes brachionus" var. "Spinosus", "Lecane inermis"), which are only present in warm waters. Jenő Ponyi has described the lake's primitive crustaceans in detail. Also a unique "Hydracarina acarus" is said to have found its habitat outside the fence surrounding the lake. The waters are reported to be beneficial to patients suffering from rheumatic diseases and locomotor disorders, among others. There is a thriving health tourism industry in the area. Lake Hévíz Lake Hévíz is located in Hévíz, Hungary, near the western end of Lake Balaton, from Keszthely. It is the largest thermal lake in the world,
Lake Nicaragua is 32 meters above sea level. Lake Nicaragua Lake Nicaragua or Cocibolca or Granada (, , or ) is a freshwater lake in Nicaragua. Of tectonic origin and with an area of , it is the largest lake in Central America, the 19th largest lake in the world (by area) and the 9th largest in the Americas, slightly smaller than Lake Titicaca. With an elevation of above sea level, the lake reaches a depth of . It is intermittently joined by the Tipitapa River to Lake Managua. The lake drains to the Caribbean Sea via the San Juan River, historically