Wādī Ḥalfā (Arabic: وادي حلفا‎) is a city in the Northern state of Sudan on the shores of "Lake Nubia" (the Sudanese section of Lake Nasser). It is the terminus of a rail line from Khartoum and the point where goods are transferred from rail to ferries going down the lake. As of 2007, the city had a population of 15,725.