The Okavango Delta consists of a multitude of main channels, smaller tributaries and lagoons as well as floodplains, islands and mainland areas. The watercourses are constantly changing due to annual flooding as well as a combination of sediment transport, seismic activity, the construction of termite mounds, and the continual opening up of new channels by feeding hippopotami and the closing of others by new vegetation growth.
There are two fairly distinct areas of the Okavango Delta - the permanent swamp, which is inundated with water all year round, and the seasonal swamp, which is flooded annually and dries gradually with the onset of summer.
