Thermalpark Dunajská Streda

Thermalpark Dunajská Streda sits on Žitný ostrov (Rye Island), the Danube's large river-island plain in southwestern Slovakia, and draws on a naturally highly mineralized, bicarbonate-sodium geothermal water pumped from a borehole 1,600 meters deep, arriving at the surface between 54°C and 56°C. The site's bathing tradition dates to 1930, when the local spa operator built two seasonal outdoor pools, but its transformation into a true thermal resort followed the discovery of hot mineral water during oil-exploration drilling in the area in the early 1980s. The first indoor heated pool opened in 1973, and the operating company was formally incorporated in 1994; the resort marked its 50th anniversary as a thermal facility in 2023.