The municipality of Radenci is located in the north east of Slovenia along the Mura River and has approximately 5200 inhabitants living in twenty-two settlements. Radenci is a well-known health resort with one of the richest and highest quality water areas in Slovenia. Radenci is known for its popular and world famous mineral water, called Radenska. Radenci was first mentioned in 1436, and was recognised as health resort in the 19th century. Karl Henn discovered springs here in 1833, the first clay bottles with mineral water were filled in 1869, while spa began in 1882.