Wadi Hanifa is one of the seasonal water passageways in the middle of the Kingdom of Saudi Arabia. It is located in Diriyah Governorate, Riyadh Province. It is one of the natural tourist attractions for the province's residents and the largest open park in the Kingdom. The valley is relatively short, being only 160 km long. It extends west of al-Uyaynah and flows from the north to the southeast with an average slope of 2.8 m. It pours in the sands of as-Sahba village in al-Kharj Governorat...