In Syunik region, near Satan’s Bridge (Satani Kamurj), at an altitude of 960m above sea level there is a hot spring called “Tatev”. The water temperature is 25°C. The spring is of carbon-bicarbonate calcium water with a small amount of iron. Source is left in its natural form, no trace of human intervention is found. Moreover the traces of ancient baths are preserved here, which testify about the settlements dating to BC. Similar traces were found in caves near the hot spring.