is located north-west of Bujumbura against the international frontier with DR Congo. It is made up of two parts ; a strip of flood-plain about 2 km wide and 35 km long beside the east bank of the Rusizi river and, to the south, a smaller area comprising the delta of the Rusizi at the point where it enters Lake Tanganyika. The two parts are separated by the main Bujumbura-Uvira road. The delta is a mixture of islands and channels covered locally by Phragmites and papyrus. An important feature of the northern part of the reserve are the stands of the fire-resistant palm Hyphaene benguellensis ventricosa. Other dominant species are Acacia albida, Balanites aegyptiaca and Euphorbia candelabrum. There are several ponds of varying size in the northern section.
