The Okavango Delta is argued as the world’s largest inland delta. The delta is created from the rains the fill the Okavango River which is delivered to the basin of the Kalahari Desert. This is caused from the rainy season that occurs between January and February. The waters begin filling the delta in March and rising to the peak months of July and August.
The majority of water is lost to evaporation and transpiration. Plants and transpiration account for 60% of the water lost followed by evaporation with 36%. The delta is extremely flat with less that 7 feet (2 meters) of elevation change. Every year the delta features 11 cubic kilometers, or 11,000,000,000,000 liters, of water flow.