The health resort town of Hisarya is situated in the centre of South Bulgaria , in the southern folds of Sredna Gora Mountain, 42 km north of Plovdiv and 160 km east of capital of Bulgaria Sofia city. Hisarya has an ancient past but now it is is a modern, world famous balneotherapy resort (one of the biggest in Bulgaria). This is a lovely town and with its rich history, many mineral springs and an unique nature, is a favorite tourist's destination.
There are 22 mineral springs with a total debit of 4000 lmin. and a temperature of 37-52 C. The mineral water is light, clear, colourless, flavourless and tasty. It is slightly mineralized, hypo- and hyper-thermal, with a predominance of hydrocarbonic, sodium, sulphate and fluorine ions, as well as substantial amounts of radio radioactive gas. The radioactive emanation is 10-165 Em, pH - 7,6 - 9,02 and over 20 microelements. Acid content - 200 - 270 mgl.
The climate is moderate continental with mild and warm winter. The average annual snowcover is 12 days. Spring comes early, summer is temperately hot with an average month temperature of 22 C. Autumn is warm and longlasting. Cloud coverage is low. The average annual humidity is moderate (70 %). Foggy weather is an exeption. The wettest months are June and November. The maximum air humidity is 65-70 %. Sunny days - 280 per year.
Town of Hisarya is ecologically clear. There are no industrial plants or factories in the region. It is rich in parks and green areas.