How Saudi Arabia Built a 120km River in the Desert

Saudi Arabia is the largest country on Earth without a single permanent natural river. Yet today, a living, 120-kilometer waterway flows right past Riyadh, carrying over 400,000 cubic meters of water every day through limestone bio-filters, wetlands, and flourishing public parks. This is the complete documentary breakdown of the Wadi Hanifa restoration—how billions of liters of desalinated Persian Gulf water pumped 500 kilometers uphill created a groundwater crisis, and how Saudi engineers turned an open toxic septic ditch into the world's most sophisticated biological living machine. #SaudiArabia #WadiHanifa #Engineering #Megaprojects #DesertRiver #Vision2030