“Sand River” Phenomenon Spotted in Saudi Arabia Amazes Viewers An unusual natural phenomenon captured in Saudi Arabia has quickly gone viral on social media. Known as the “sand river,” the footage shows desert sands flowing in a wave-like motion, resembling a river current moving across the landscape. Meteorologists explain that this rare event occurs when strong winds lift and push a fine surface layer of sand in a continuous stream, creating the illusion of flowing water. Under the right atmos