Wadi

A wadi is a dry riverbed or valley that temporarily fills with water after heavy rain, primarily found in arid regions like deserts. In normal conditions, it often appears as a sandy or rocky channel, but when it rains, it can transform into a flowing watercourse. These natural formations are important for the local ecosystem and can support vegetation and wildlife. They also serve as vital sources of water in otherwise dry areas, influencing both the geography and human activities in the region.