Termy Cieplickie

Cieplice, a spa district of Jelenia Góra in the Sudetes foothills, holds Poland's warmest documented mineral springs — first mentioned in a 1281 charter and developed into a proper health resort by Cistercian monks from nearby Krzeszów in the 15th century. By the 16th century the waters were drawing patients from across Europe, including Polish queen Marie Casimire and Princess Izabela Czartoryska. The fluoride-silicic water is low in overall mineralization but rich in sulphur, silicon and fluorine compounds, historically fed by shallow springs (Marysieńka, Sobieski, Nowe) and later by two deep boreholes: Cieplice-2 (661 m) and the much deeper Cieplice-1 (2,002.5 m), which reaches temperatures up to 86°C, the highest recorded anywhere in Poland. The modern Termy Cieplickie aquapark, opened in March 2014 beside the historic Park Zdrojowy, draws on this resource and cools it to a bathing range of 27–36°C across its indoor and outdoor pools, geyser basins and a river-style current pool.