On the mountain itself, there are several springs, of which Sakinac is best known. Despite being the only mountain in the area, Avala is not a source of many rivers. The Topčiderka river, originating in the woods of Lipovička šuma on the south-west, flows on the western slopes of Avala, while the river Bolečica flows on the eastern slopes. Other minor flows include the Vranovac, a tributary to the Bolečica. A small artificial lake near the village of Pinosava was created on the western slope of the mountain. The settlements in the area are notorious for problems with shortages of drinking water during summer.