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Wadi in Nachal Paran, the Negev, Israel. Wadi (Arabic: وادي wādī; also: Vadi) is the Arabic term traditionally referring to a valley. In some cases, it may refer to a dry riverbed that contains water only during times of heavy rain or simply an intermittent stream. Contents. — “Wadi - Wikipedia, the free encyclopedia”, en.wikipedia.org
The United Arab Emirates does not have any permanent rivers, but does have wadis, a permanently or intermittently dry riverbed. This is a list of wadis in United Arab Emirates arranged by drainage basin.  Persian Gulf. Dubai Creek is sometimes. — “List of wadis of the United Arab Emirates - Wikipedia, the”, en.wikipedia.org
The Nile is intersected by a number of normally dry tributaries or wadis which traverse the Eastern Desert. The wadis drain run-off rainfall from the mountains along the Egyptian Red Sea coast, though it only rarely reaches the main trunk of the wadis to flow downstream to the Nile. — “List of rivers of Egypt - Wikipedia, the free encyclopedia”, en.wikipedia.org