Aqua Centre Jánské Lázně

Jánské Lázně's warm spring was, by local tradition, found in 1006, though documented bathing use dates from the 14th century; Prince Johann Adolf I of Schwarzenberg built the first six spa structures at the spring in 1677. The Aqua Centre's irregular 230 m² rehabilitation pool is filled with mineral water at 27°C piped directly from the Janský and Černý springs within the spa grounds, alongside indoor whirlpools at 32°C. Sitting at 519 metres inside the Krkonoše (Giant Mountains) UNESCO biosphere reserve, the spa became internationally known after 1945 for treating post-polio paralysis, and in 1981 built the Vesna children's rehabilitation clinic that brought the town's mineral-water therapy to international standards of paediatric care.