Especially the springs of iron acidulous water are famous.

Cold sulphur and hydrogen acidulous waters are used at the Sobrance health resort.

A unique medicinal mean are baths in the alkali earthy acidulous water with a high content of carbon dioxide.

In addition to salt mineral water springs in Cigeľka from dozens of sources acidulous water.

Earlier geysers of hot acidulous water created stalagmites; little shrublets and doughnut shaped aragonite mineral formations can also be observed.