A wadi is a dry riverbed or valley that typically contains water only during periods of heavy rain. Found mainly in arid and semi-arid regions, wadis can be important for local ecosystems, providing a habitat for various plants and animals. They often serve as natural drainage channels, directing rainwater away from higher ground. In many cultures, especially in the Middle East and North Africa, wadis are significant for agriculture and settlement. They can support vegetation and crops due to the moisture retained in the soil. Additionally, Bedouins and other local communities often utilize wadis for travel and trade routes.