Variously known as “Cleopatra Spring,” “Ain Juba” or “Ain al Hammam”, in ancient times it was known as “The Spring of the Sun”. Herodotus described its bubbling waters in his Histories as boiling hot in the chilly evenings and cool during the heat of the day, and it was considered a wonder by ancients visiting Amon. In reality, the spring’s waters are a constant 29 C; it’s the changing air temperature and bubbling water that give the impression of boiling water.

The spring is one of many in the area and is located on the path that leads to the Temple of Amun. It lies in east of Siwa Oasis, it is a stone pool fed by natural spring water, and probably the best known pool in the area. Apparently, the pool had was not vary inviting from reports in recent years, but there have been efforts made to improve it.

However, as with all springs in the area, it is wise to consider local customs. People do not bath in these pools in skimpy swimsuits, and in fact, most often remain clothed. Therefore, a good idea if one intents to bath here is to bring a covering garment suitable to the occasion.