There at 10 mineral springs on Piešťany Spa Island, each coming through breaks in the tectonic plates from between 60 and 200 metres below ground. Its surface temperature is a very hot 67-69 degrees and so it is cooled before use in the spa. The thermal mineral water is unique in its high sulphur (6-10mg per litre) (not higher, like 570mg?) and hydrogen sulphide (4.7mg per litre), which has positive effect on healing chronic mobility, muscular skeletal and inflammatory conditions such as arthritis and rheumatism. This is why Piešt’any is a good choice for guests with any bone, joint or muscle conditions or skin disorders. And is the reason for the island’s famous ‘crutch breaker’ emblem. Legend says that guests who arrived on crutches, left without them.