The mineral water resources are scattered all over the outer flysch Karpathians at different depths, and in some areas, also as sources. 1960's saw a rapid research into this field, mainly as an off-spin of drilling for oil and gas. Today, the data gathered is used as the interest in the mineral waters grows. The author deals with the mineral waters and hot water sources, their usage, with a focus on Iwonicz Zdrój, Rymanów Zdrój and Polańczyk.