Access to mineral springs is usually free of charge. Outdoor cold springs are turned off in winter, while indoor drinking fountains are accessible all year round. A walk to a drinking water pavilion two or three times a day is a good, pleasant and light exercise as an optimal complement to your spa treatment. The spa town of Mariánské Lázně was founded at the beginning of the 19th century around the healing effects of its many medicinal mineral springs, which are world-famous for their curative effects on urinary tract diseases (namely stones) and metabolic disorders (especially disorders of the digestive tract). Even in the 21st century, drinking medicinal mineral water can be an important part of your spa stay, depending on your state of health. However, improper or excessive consumption of certain medicinal waters can result in various unwanted side effects, such as diarrhoea, belching, bloating, swollen legs and eyelids, and increased blood pressure. Therefore, your spa doctor, in combination with the indispensable observance of the correct drinking quantity, will advise you on which healing spring is best suited for your health condition.