Hunguest ホテル Helios ヘーヴィーズ is a spa resort of international fame that developed around Europe's largest hot water lake. The temperature of the lake is 26-28 oC in the winter, so it is possible to bath in the open air bath through the whole year. The water completely changes every 28 hours. Medical mud covers the entire inside of the lake. The lake -situated 7 km from Balaton and its surroundings were pronounced a nature conservation area.The ホテル complex of three buildings lies 800 metres from the town centre and the thermal lake, in the middle of a wonderful, neat nature reserved 6,5 hectare large park.