Geothermal energy is one of the renewable sources of energy, which is extremely important from the point of view of the idea of sustainable development. In modern Poland, the use of geothermal energy is so far limited. There are several plants that use geothermal energy for heating purposes, but the cost-effectiveness of this type of investment is low. For several years, a rapid development of so-called thermal parks has been observed, which is related with a newfound fashionability of the healthy lifestyle. Particularly advantageous geological conditions in the region of Podhale, as well as the significant tourist popularity of this area in general all year round, make this type of investment substantially profitable. In other parts of the country, only a few relatively small thermal parks are operational and development is not easy because of the high start-up cost and difficulty of providing adequate financial resources