Miskolctapolca is Hungary's most unique bathing experience — thermal pools built inside a network of natural limestone caves. The caves were discovered in the 19th century and developed into a bathing facility in 1959. Visitors swim through illuminated cave passages and chambers, with the thermal water (30–33°C) flowing through the natural rock formations. The cave system extends for approximately 700 metres and includes both covered and open sections. Above ground, a larger outdoor adventure pool complex complements the underground experience. The mineral content of the water — including calcium, magnesium, sulphate and hydrogen carbonate — is beneficial for respiratory conditions and locomotor disorders. An entirely one-of-a-kind bathing experience not found anywhere else in Europe.